The one that always comes
Jolteon: Focus Sash
Volt Absorb
Charge Beam
Thunderbolt
Hidden Power Ice
Shadow Ball
Timid: HP 4 SpA 252 Speed 252
He is in my party since I think he is probably the best electric special attacker in 4th gen, great speed and great Sp.A. And I think it's pretty badass having a First Gen pokemon on a 4th gen party. And I think he is the manliest out of the eveelutions :P
I don't worry about stealth rock since its the first to come out and he is on top speed, I only need to worry about the Sandstorms or Hail. In Wi-Fi Battle Tower the Focus Sash has helped me A LOT and Thunder Bolt and Charge Beam its a great combo IMHO
Weavile: Life Orb
Pressure
Pursuit
Ice Punch
Ice Shard
Low Kick
Jolly Nature
HP 4 ATT 252 SPEED 252
Probably one of my Fav. pokemon from the new generations...Speed and power, quite powerful, causes a few havoc among unprepared players. Best thing that happened to Sneasel
I normally Ice Punch pokemon who I know will set up a Stealth Rock or something and then Ice Shard or pursuit second turn since they have focus sash, low kick to destroy those Tyranitars and does a good amount of damage to Metagross
Mamoswine:Life Orb
Snow Cloak
Earthquake
Stone Edge
Avalanche
Ice Shard
Adamant
HP 252 ATT 252 DEF 4
This things is just intimidating , STAB Earthquake with 394 attack and max Health.
I invested more in HP since Ice Shard is probably my main move...probably I'll move to Choice Band..Avalanche is pretty great since he has full HP and can take out a very bulky pokemon.
Bulky Gyara: Leftovers
Intimidate
Dragon Dance
Waterfall
Taunt
Stone Edge
Adamant
its the Bulky Gyara EV spread :P
My favorite water type pokemon, that thing looks so awesome, I forget sometimes that thing evolves from Magikarp and I like using First gen pokemon...wish Gyarados had more defenses...o well I guess I'll make later on a team with a double screener later on.
Well, Jolten Gyara combination Stone Edge is there...don't know if to remove Taunt and add Ice Fang ...
Heatran: Life Orb
Flash Fire
Fire Blast
Earth Power
Magma Storm
Flash Cannon
Timid: HP 4 SPA 252 SPEED 252
Probably among the best Fire type pokemon...and I like Steel and Fire types but they are quite a few good once that are able to sweep, so Heatran is the best of both worlds, I don't like its desigin but this guy grew on me.
I needed a Fire Type pokemon , Magma Storm has helped me out but yeah probably going to remove that.
Dragonite:Lum Berry
Inner Focus
Dragon Dance
Outrage
ExtremeSpeed
Fire Punch
Adamant
forgot the EV spread but the important stats are: HP 386, Att 348 and Speed 247, I think its the Dragon Dance EV spread from the strategy pokedex
Yeah, the Not-Salamence, pokemon haha his looks are meh, compared to his pre-evos, but causes a lot of wreck to oponents, and 1st gen pokemon... I mean, probably my fav gen well I loved 3rd gen as well. Quite powerful, able to sweep a whole unprepared team, did once with a sweeper Gyara, and now Dragonite has Extreme Speed...makes him even a bigger threat, can stand up too Salamence now :)
so, what do you think...A lot of Life Orbs there... I know
EDIT:
Jolteon Focus Sash, hits very hard with Thunderbolt, and with focus sash its easy to make a 2HKO for an annoying sweeper, I normally use Charge Beam for the secon move in order to get the SP.A boost, but for some reason it misses more than my Gyara's Stone Edge...oh well, but it works , and a max speed boosted Sp.A Jolteon is pretty awesome.
Shadow Ball for Neutral coverage, and HP Ice for Dragons.
Weavile , pretty decent pokemon, makes the job, hits hard with STAB Ice Punch and Ice Shard, Pursuit works amazingly well with Starmie's that try to switch out and realize its too late and can't change the move to an attack or something. Low Kick shatters Tyranitar and Ice Shard being priority helps quite a lot when you are in a life and death situation.
Mamoswine, I normally wait the perfect cirumstance, STAB Ice Shard with Choice Band or Life Orb, I think I will go with Choice Band from now on, to hit first and really hard. STAB Eartquake and Full Health will take care of a few pokemon, or Avalanche since he is quite slow and double damage is always good.
Bulky Gyara works great with Jolteon, Gyara combo, Dragon Dance works fine, but scared to use it since I don't know if they will OHKO Gyara, but STAB Water Fall and Stone Edge has a pretty nice coverage, and Taunt for those slow entry hazard setup-ers :P
Heatran, takes care of Szcisor and a few pokemon that use Steel type moves in order to sweep or something, I will keep the Life Orb on this one, Like Danmire said I will put on Dragon Pulse instead of Magma Storm.
Dragonite, another sweeper, I bring him last almost always, very late game sweeper I guess, Dragon Dance Outrage, will probably OHKO the oponent if he/she has two pokemon left with no resistance or three. and He is Immune to Fake Out , and Extreme Speed!! :) It hits quite well.
If my descprition is still lacking please post below.

Volt Absorb
Charge Beam
Thunderbolt
Hidden Power Ice
Shadow Ball
Timid: HP 4 SpA 252 Speed 252
He is in my party since I think he is probably the best electric special attacker in 4th gen, great speed and great Sp.A. And I think it's pretty badass having a First Gen pokemon on a 4th gen party. And I think he is the manliest out of the eveelutions :P
I don't worry about stealth rock since its the first to come out and he is on top speed, I only need to worry about the Sandstorms or Hail. In Wi-Fi Battle Tower the Focus Sash has helped me A LOT and Thunder Bolt and Charge Beam its a great combo IMHO

Pressure
Pursuit
Ice Punch
Ice Shard
Low Kick
Jolly Nature
HP 4 ATT 252 SPEED 252
Probably one of my Fav. pokemon from the new generations...Speed and power, quite powerful, causes a few havoc among unprepared players. Best thing that happened to Sneasel
I normally Ice Punch pokemon who I know will set up a Stealth Rock or something and then Ice Shard or pursuit second turn since they have focus sash, low kick to destroy those Tyranitars and does a good amount of damage to Metagross

Snow Cloak
Earthquake
Stone Edge
Avalanche
Ice Shard
Adamant
HP 252 ATT 252 DEF 4
This things is just intimidating , STAB Earthquake with 394 attack and max Health.
I invested more in HP since Ice Shard is probably my main move...probably I'll move to Choice Band..Avalanche is pretty great since he has full HP and can take out a very bulky pokemon.

Intimidate
Dragon Dance
Waterfall
Taunt
Stone Edge
Adamant
its the Bulky Gyara EV spread :P
My favorite water type pokemon, that thing looks so awesome, I forget sometimes that thing evolves from Magikarp and I like using First gen pokemon...wish Gyarados had more defenses...o well I guess I'll make later on a team with a double screener later on.
Well, Jolten Gyara combination Stone Edge is there...don't know if to remove Taunt and add Ice Fang ...

Flash Fire
Fire Blast
Earth Power
Magma Storm
Flash Cannon
Timid: HP 4 SPA 252 SPEED 252
Probably among the best Fire type pokemon...and I like Steel and Fire types but they are quite a few good once that are able to sweep, so Heatran is the best of both worlds, I don't like its desigin but this guy grew on me.
I needed a Fire Type pokemon , Magma Storm has helped me out but yeah probably going to remove that.

Inner Focus
Dragon Dance
Outrage
ExtremeSpeed
Fire Punch
Adamant
forgot the EV spread but the important stats are: HP 386, Att 348 and Speed 247, I think its the Dragon Dance EV spread from the strategy pokedex
Yeah, the Not-Salamence, pokemon haha his looks are meh, compared to his pre-evos, but causes a lot of wreck to oponents, and 1st gen pokemon... I mean, probably my fav gen well I loved 3rd gen as well. Quite powerful, able to sweep a whole unprepared team, did once with a sweeper Gyara, and now Dragonite has Extreme Speed...makes him even a bigger threat, can stand up too Salamence now :)
so, what do you think...A lot of Life Orbs there... I know
EDIT:
Jolteon Focus Sash, hits very hard with Thunderbolt, and with focus sash its easy to make a 2HKO for an annoying sweeper, I normally use Charge Beam for the secon move in order to get the SP.A boost, but for some reason it misses more than my Gyara's Stone Edge...oh well, but it works , and a max speed boosted Sp.A Jolteon is pretty awesome.
Shadow Ball for Neutral coverage, and HP Ice for Dragons.
Weavile , pretty decent pokemon, makes the job, hits hard with STAB Ice Punch and Ice Shard, Pursuit works amazingly well with Starmie's that try to switch out and realize its too late and can't change the move to an attack or something. Low Kick shatters Tyranitar and Ice Shard being priority helps quite a lot when you are in a life and death situation.
Mamoswine, I normally wait the perfect cirumstance, STAB Ice Shard with Choice Band or Life Orb, I think I will go with Choice Band from now on, to hit first and really hard. STAB Eartquake and Full Health will take care of a few pokemon, or Avalanche since he is quite slow and double damage is always good.
Bulky Gyara works great with Jolteon, Gyara combo, Dragon Dance works fine, but scared to use it since I don't know if they will OHKO Gyara, but STAB Water Fall and Stone Edge has a pretty nice coverage, and Taunt for those slow entry hazard setup-ers :P
Heatran, takes care of Szcisor and a few pokemon that use Steel type moves in order to sweep or something, I will keep the Life Orb on this one, Like Danmire said I will put on Dragon Pulse instead of Magma Storm.
Dragonite, another sweeper, I bring him last almost always, very late game sweeper I guess, Dragon Dance Outrage, will probably OHKO the oponent if he/she has two pokemon left with no resistance or three. and He is Immune to Fake Out , and Extreme Speed!! :) It hits quite well.
If my descprition is still lacking please post below.