I've been playing UU for a while, and truth be told, its been somewhat unsuccessful. I've looked at my pokes over and over after finishing a team and saying "Dang, these guys will own!" and then the complete opposite happens. I try, try and try again different sets and combinations on Smogon, all seeming to fail when the time comes. My newest team may look like a weather team, but its not, and please help! Also, please don't suggest all cliche pokemon (Ex. Hey dude! Use Froslass lead, SubCM raikou and Moltres!)
Demon Dog @ Focus Sash
4 hp/ 252 SpA/ 252 Spe
Hasty Nature
-Fire Blast
-Counter
-Sucker Punch
-Taunt/Protect
Houndoom is, in general, a great lead. It kills froslass leads, allowing only one layer of spikes, Arcanine will get KO'd by Counter and Alakazam will die from repeated Sucker Punches. Ambipom is stopped by Protect and OHKO'd by counter. Not much that there is to do about Moltres though, which might cause a switch.
A rock that shoots geodudes and polishes itself @ Life Orb
252 atk/ 4 def/ 252 spe
Jolly Nature
-Rock Polish
-Stone Edge
-Earthquake
-Megahorn
Rock Polish Rhyperior always seemed like a cool poke to use, just not as viable as torterra due to low speed and is killed by Bulky Milotic, which I have Toxicroak to counter. This set is pretty self-explanatory, and works well with Toxicroak, but Earth Power will kill these guys easy.
Frogrunner, aka me @ Life Orb
4 hp/ 252 atk/ 252 spe
Adamant Nature
-Swords Dance
-Ice Punch
-Cross Crop
-Sucker Punch
This guy works REALLY well with Rhyperior, taking little or resisted damage from everything that Rhyperior can't take besides EQ, which I'll just have to predict. He also kills Alakazams, which my previous teams had trouble handling. What I also like about Toxicroak is that you can't really know if hes special or physical until they get to set up on you. Ice punch is there instead of the average stone edge because it takes out altaria, rather than moltres which is easily killed by Rhyperior in a stone edge.
A pink thing @ Leftovers
4 hp/ 252 sp. atk/ 252 speed
Bold Nature
Psychic
Substitute
Calm Mind
Ice Beam
Mesprit is used to kill any extremely-high-physical-defense-with-low-special-defense pokemon, the best example being enemy Rhyperiors, as well as the Hitmon pokemon. If it can't kill it, at least it can force a switch, sub up and start CMing. I pick Bold over Timid because Mesprits speed is on the low side, and even with 252 EV's and Timid nature, I still won't be able to outrun things such as Mismagius, which is why I want some bulk over speed.
The fat stupid guy @ Leftovers
252 hp/ 252 def/ 4 spA
Bold nature
-Slack Off
-Surf
-Flamethrower
-Light Screen
Slowbro is mainly to be used to absorb some blows, screen for Mesprit and die or kill something (hopefully). Nobody expects a flamethrower coming from Slowbro, and often I will see Sceptiles switch into this and what do you know? They get set on fire by a creature I am still unable to identify. SD Venusaur causes a problem for Slowbro though.
A vegetable dog @ Leftovers
200 atk/56 def/ 252 spe
Jolly Nature
Leaf Blade
Roar
Return/Quick Attack
Grasswhistle
This is a utility Leafeon, which is quite rare, and probably unexpected. Grasswhistle's accuracy is shaky, but my team didn't have a sleeper or a pseudo-hazer, which makes it vulnerable to Sub-stat boosters. The EV's are spread kind of oddly, but with a base 130 defense, its not really necessary to put a million EV's into it, and I can switch into Slowbro if I have a fire type I can't take it out. The Fire-Water-Grass Combination seems to work well for me, so I guess thats how i'll play with this team.
Thats my UU team, please note that I tried to be partially creative on most of these. Once again, please don't suggest all extremely cliche pokemon with cliche sets, unpredictability and usefulness is what I need!
Demon Dog @ Focus Sash

4 hp/ 252 SpA/ 252 Spe
Hasty Nature
-Fire Blast
-Counter
-Sucker Punch
-Taunt/Protect
Houndoom is, in general, a great lead. It kills froslass leads, allowing only one layer of spikes, Arcanine will get KO'd by Counter and Alakazam will die from repeated Sucker Punches. Ambipom is stopped by Protect and OHKO'd by counter. Not much that there is to do about Moltres though, which might cause a switch.
A rock that shoots geodudes and polishes itself @ Life Orb

252 atk/ 4 def/ 252 spe
Jolly Nature
-Rock Polish
-Stone Edge
-Earthquake
-Megahorn
Rock Polish Rhyperior always seemed like a cool poke to use, just not as viable as torterra due to low speed and is killed by Bulky Milotic, which I have Toxicroak to counter. This set is pretty self-explanatory, and works well with Toxicroak, but Earth Power will kill these guys easy.
Frogrunner, aka me @ Life Orb

4 hp/ 252 atk/ 252 spe
Adamant Nature
-Swords Dance
-Ice Punch
-Cross Crop
-Sucker Punch
This guy works REALLY well with Rhyperior, taking little or resisted damage from everything that Rhyperior can't take besides EQ, which I'll just have to predict. He also kills Alakazams, which my previous teams had trouble handling. What I also like about Toxicroak is that you can't really know if hes special or physical until they get to set up on you. Ice punch is there instead of the average stone edge because it takes out altaria, rather than moltres which is easily killed by Rhyperior in a stone edge.
A pink thing @ Leftovers

4 hp/ 252 sp. atk/ 252 speed
Bold Nature
Psychic
Substitute
Calm Mind
Ice Beam
Mesprit is used to kill any extremely-high-physical-defense-with-low-special-defense pokemon, the best example being enemy Rhyperiors, as well as the Hitmon pokemon. If it can't kill it, at least it can force a switch, sub up and start CMing. I pick Bold over Timid because Mesprits speed is on the low side, and even with 252 EV's and Timid nature, I still won't be able to outrun things such as Mismagius, which is why I want some bulk over speed.
The fat stupid guy @ Leftovers

252 hp/ 252 def/ 4 spA
Bold nature
-Slack Off
-Surf
-Flamethrower
-Light Screen
Slowbro is mainly to be used to absorb some blows, screen for Mesprit and die or kill something (hopefully). Nobody expects a flamethrower coming from Slowbro, and often I will see Sceptiles switch into this and what do you know? They get set on fire by a creature I am still unable to identify. SD Venusaur causes a problem for Slowbro though.
A vegetable dog @ Leftovers

200 atk/56 def/ 252 spe
Jolly Nature
Leaf Blade
Roar
Return/Quick Attack
Grasswhistle
This is a utility Leafeon, which is quite rare, and probably unexpected. Grasswhistle's accuracy is shaky, but my team didn't have a sleeper or a pseudo-hazer, which makes it vulnerable to Sub-stat boosters. The EV's are spread kind of oddly, but with a base 130 defense, its not really necessary to put a million EV's into it, and I can switch into Slowbro if I have a fire type I can't take it out. The Fire-Water-Grass Combination seems to work well for me, so I guess thats how i'll play with this team.
Thats my UU team, please note that I tried to be partially creative on most of these. Once again, please don't suggest all extremely cliche pokemon with cliche sets, unpredictability and usefulness is what I need!