First of all, i'm not HUGE into the competetive scene, however i would just like people to take a look at my team and what's wrong with it. As well as provide insight that i couldn't see on my own.
Importables
9/19 revised team released. Now with Sprites!
9/21 added Tauros to the list of possible replacements
Galvantula @ Life Orb
Ability: Compound Eyes
Nature: Modest
Ev's: 252 SpA 252 spe 4 hp
Moves:
Thunder
Volt Switch/Hidden Power [ice]
Giga Drain
Bug Buzz
Easily one of my favorite pokemon of the 5th generation, Galvantula has a special place in my heart
. The compound eyes + Life orb should immediately lead one to know that It's a thunder sweeper. I gave it a grass type move to deal with pesky ground types, albeit it's redundant with coverage of water types, but hey. Bug buzz gives it a little bit more coverage over grass and dark types. And it can scout as well with volt switch.
Primarily its in my team because i like it as a pokemon. and it's fun to use.

Ability: Compound Eyes
Nature: Modest
Ev's: 252 SpA 252 spe 4 hp
Moves:
Thunder
Volt Switch/Hidden Power [ice]
Giga Drain
Bug Buzz
Easily one of my favorite pokemon of the 5th generation, Galvantula has a special place in my heart

Primarily its in my team because i like it as a pokemon. and it's fun to use.
Archeops @ flying Gem
Ability: Defeatist
Nature: Jolly
Ev's: 252 atk 252 spe 4 hp
Moves:
Acrobatics
U-Turn
Stone Edge
Earthquake
Another one of my favorites that i just thought was really cool, it's nature sucks so i have to make up with the ev's just to even out it's naturally awesome Atk stat. It has EdgeQuake, Flying gem STAB acrobatics, and scouting U-turn. All in all decent coverage to make one of the coolest poke's i got :).

Ability: Defeatist
Nature: Jolly
Ev's: 252 atk 252 spe 4 hp
Moves:
Acrobatics
U-Turn
Stone Edge
Earthquake
Another one of my favorites that i just thought was really cool, it's nature sucks so i have to make up with the ev's just to even out it's naturally awesome Atk stat. It has EdgeQuake, Flying gem STAB acrobatics, and scouting U-turn. All in all decent coverage to make one of the coolest poke's i got :).
Empoleon @ Leftovers
Ability: Defiant
Nature: Adamant
Ev's: 252 hp 252 atk 4 def
Moves:
Stealth Rock
Aqua Jet
Earthquake
Drill Peck
Ok so this is from Cesterp's suggestion, a Max Hp/atk EV adamant Empoleon. I finally have SR added to my team in addition to Roserade's spikes. Aqua Jet is a priority move to suprise a foe and is the STAB of the set. Earthquake and Drill peck are damaging attacks that have good coverage. Empoleons bulky typing gives it a lot of resistances and not a lot of weaknesses.

Ability: Defiant
Nature: Adamant
Ev's: 252 hp 252 atk 4 def
Moves:
Stealth Rock
Aqua Jet
Earthquake
Drill Peck
Ok so this is from Cesterp's suggestion, a Max Hp/atk EV adamant Empoleon. I finally have SR added to my team in addition to Roserade's spikes. Aqua Jet is a priority move to suprise a foe and is the STAB of the set. Earthquake and Drill peck are damaging attacks that have good coverage. Empoleons bulky typing gives it a lot of resistances and not a lot of weaknesses.
Mienshao @ Life Orb
Ability: Regenerator
Nature: Jolly
Ev's: 252 atk 252 spe 4 hp
Moves:
Fake Out
Hi-Jump Kick
Drain Punch
U-Turn
The classic Mienshao set, Fake Out + U-turn gives it powerful Priority and scouting. Regenerator keeps it's hp from the Life orb recoil. It also has 2 Massive STABs in Hi-Jump Kick and Drain Punch, should i choose to keep Mienshao in, it'll do some massive damage coupled with Life Orb.

Ability: Regenerator
Nature: Jolly
Ev's: 252 atk 252 spe 4 hp
Moves:
Fake Out
Hi-Jump Kick
Drain Punch
U-Turn
The classic Mienshao set, Fake Out + U-turn gives it powerful Priority and scouting. Regenerator keeps it's hp from the Life orb recoil. It also has 2 Massive STABs in Hi-Jump Kick and Drain Punch, should i choose to keep Mienshao in, it'll do some massive damage coupled with Life Orb.
Venomoth @ Black Sludge
Ability: Shield dust
Nature: Timid
Ev's: 252 hp 252 spe 4 def
Moves:
Baton Pass
Quiver Dance
Sleep Powder
Substitute
This suggestion came from Cesterp as well, Venomoth to replace Mr. Mime. A fairly powerful SubPassDance set. Sleep Powder + sub gives me strong set up power provided I'm not in a position to violate the sleep clause. Black Sludge gives it good sustain, however much like Mr. Mime, Venomoth is Taunt bait.

Ability: Shield dust
Nature: Timid
Ev's: 252 hp 252 spe 4 def
Moves:
Baton Pass
Quiver Dance
Sleep Powder
Substitute
This suggestion came from Cesterp as well, Venomoth to replace Mr. Mime. A fairly powerful SubPassDance set. Sleep Powder + sub gives me strong set up power provided I'm not in a position to violate the sleep clause. Black Sludge gives it good sustain, however much like Mr. Mime, Venomoth is Taunt bait.
Roserade @ Black Sludge
Ability: Natural Cure
Nature: Calm
Ev's: 252 hp 120 def 136 spe
Moves:
Spikes
Aromatherapy
Sludge Bomb
Synthesis/Giga Drain
Ticklegrowth brought up replacing Frosslass with Roserade as spiker of choice since it's top of the tier. And the set does work quite well, Healing through Synthesis/Giga Drain and Black Sludge. Aromatherapy cures status through my team while having Natural Cure itself. And it also has a powerful STAB in Sludge Bomb and possibly Giga Drain. And of course the premier move: spikes. All-in-All a strong addition to the set, although it can't spin block quite like Frosslass can, I expect to see some success with it.

Ability: Natural Cure
Nature: Calm
Ev's: 252 hp 120 def 136 spe
Moves:
Spikes
Aromatherapy
Sludge Bomb
Synthesis/Giga Drain
Ticklegrowth brought up replacing Frosslass with Roserade as spiker of choice since it's top of the tier. And the set does work quite well, Healing through Synthesis/Giga Drain and Black Sludge. Aromatherapy cures status through my team while having Natural Cure itself. And it also has a powerful STAB in Sludge Bomb and possibly Giga Drain. And of course the premier move: spikes. All-in-All a strong addition to the set, although it can't spin block quite like Frosslass can, I expect to see some success with it.
Importables
Gorebyss @ White Herb
Ability: Swift Swim
Nature: calm
Ev's: 252 hp 232 spe 24 SpD
Moves:
Shell Smash
Baton Pass
Scald
Substitute/HP [electric]
A very strong SubShellPasser, would fit very well in the team to allow a switch into Archeops or Cobalion if it were still in here. Also has STAB scald if it is taunted.

Ability: Swift Swim
Nature: calm
Ev's: 252 hp 232 spe 24 SpD
Moves:
Shell Smash
Baton Pass
Scald
Substitute/HP [electric]
A very strong SubShellPasser, would fit very well in the team to allow a switch into Archeops or Cobalion if it were still in here. Also has STAB scald if it is taunted.
Cobalion @ Leftovers
Ability: Justified
Nature: Jolly
Ev's: 252 atk 252 spe 4 hp
Moves:
Sacred Sword
Swords dance
Iron Head
Substitute
A set very well suited to physical sweeping, but would be coupled with Gorebyss. Replaced Close Combat with Sacred Sword because of lack of PP.

Ability: Justified
Nature: Jolly
Ev's: 252 atk 252 spe 4 hp
Moves:
Sacred Sword
Swords dance
Iron Head
Substitute
A set very well suited to physical sweeping, but would be coupled with Gorebyss. Replaced Close Combat with Sacred Sword because of lack of PP.
Houndoom @ Life Orb
Ability: Flash Fire
Nature: Hasty
Ev's: 252 SpA 252 spe + 4 def
Moves:
Sucker Punch
Dark Pulse
Flamethrower
HP [Grass]
So some might argue a more mixed attacker set for the once king of the hill Nasty Plot sweeper is better. But I like this set better, as Houndoom is naturally more of a special attacker and its speed is no slouch either especially with a speedy nature. Dark Pulse, Flamethrower and HP grass give it fair coverage. Despite no longer being a top tier special sweeper, Houndoom is still nothing to forget about, and it still remains a premier anti-metagame pokemon being able to keep Victini Chandelure and moxiecross in check. Goes very well with Venomoth in the set.

Ability: Flash Fire
Nature: Hasty
Ev's: 252 SpA 252 spe + 4 def
Moves:
Sucker Punch
Dark Pulse
Flamethrower
HP [Grass]
So some might argue a more mixed attacker set for the once king of the hill Nasty Plot sweeper is better. But I like this set better, as Houndoom is naturally more of a special attacker and its speed is no slouch either especially with a speedy nature. Dark Pulse, Flamethrower and HP grass give it fair coverage. Despite no longer being a top tier special sweeper, Houndoom is still nothing to forget about, and it still remains a premier anti-metagame pokemon being able to keep Victini Chandelure and moxiecross in check. Goes very well with Venomoth in the set.
Tauros @ Life Orb
Ability: Sheer Force
Nature: Jolly
Ev's: 4 hp 252 atk 252 spe
Moves:
Rock Climb/Double-Edge
Earthquake
Rock Slide
Zen Headbutt
The once RBY king-of-the-hill makes it's viability known in UU with it's incredible ability in Sheer Force as well as it's awesome type coverage. Moves that activate under Sheer Force, negate thier effects as well as NEGATING Life Orb Recoil. Return can be used in place of RC or DE, but it does suffer from LO recoil with it's only draw being more reliability. EQ RS and ZHbutt give it fantastic coverage allowing it to hit probably most of UU nuetrally at least. Tauros is a monstrous Physical threat and has a very strong 110 base speed to top it of along with not too shabby def stats either.

Ability: Sheer Force
Nature: Jolly
Ev's: 4 hp 252 atk 252 spe
Moves:
Rock Climb/Double-Edge
Earthquake
Rock Slide
Zen Headbutt
The once RBY king-of-the-hill makes it's viability known in UU with it's incredible ability in Sheer Force as well as it's awesome type coverage. Moves that activate under Sheer Force, negate thier effects as well as NEGATING Life Orb Recoil. Return can be used in place of RC or DE, but it does suffer from LO recoil with it's only draw being more reliability. EQ RS and ZHbutt give it fantastic coverage allowing it to hit probably most of UU nuetrally at least. Tauros is a monstrous Physical threat and has a very strong 110 base speed to top it of along with not too shabby def stats either.
9/19 revised team released. Now with Sprites!
9/21 added Tauros to the list of possible replacements