Making a stable OU team is very hard, nearly impossible. This one isn't completely "stable" but for me, it's balanced, defensively and offensively. Rate away SBers.
Medicham @ Choice Scarf
Adamant
252 Att/252 Spe/6 HP
Psycho Cut
Hi Jump Kick
Thunderpunch
Ice Punch
Medicham? Wasn't he that beast from ADV? Yes, you're correct, Medicham is a monster offensively, with a Base 480 attack stat with no added items. Psycho Cut and Hi Jump Kick offer awesome coverage, while Thunderpunch and Ice Punch make Gyarados and dragons think twice before switching in respectively. Gets walled by Bronzong, but Bronzong is a pain anyway.
Blissey @ Leftovers
Calm
42 HP/252 Def/216 SpD
Aromatherapy
Seismic Toss
Toxic
Softboiled
The queen of Special Walling debutes on my team. Unlike physical walls, Blissey can handle practically every single special threat in the entire OU metagame. Sure, there are exceptions, but Toxic deals a number on all of them not named Jirachi. Aromatherapy because status eats my team with a silver spoon.
Gliscor @ Leftovers
Impish
252 HP/252 Def/6 Att
Ice Fang/Aerial Ace
Earthquake
Roost
Taunt
Gliscor is quite possibly the greatest and most stable physical wall in the entire OU Metagame. Not only does he lower his 4x weakness to ice to 2x, but he rids himself of that pesky rock neutrility. Ice Fang and Aerial Ace are two very good options on Gliscor, handling Garchomp and Heracross respectively. EQ is a nice little STAB that murders Tyranitar, 2HKO with only 6 EV investment. Taunt stops set ups, which is easy since Gliscor is pretty fast himself.
Gyarados @ Life Orb
Adamant
72 HP/252 Att/186 Spe
Dragon Dance
Ice Fang
Stone Edge
Waterfall
A monster, literally. LO Gyarados rips through teams, moreso in late game. Unlike BulkyGyara, LO Gyara can deal some damage with no DD's. Stone Edge kicks other Gyara's where it hurts, whereas Ice Fang tells those Garchomps to get out. Waterfall is a STAB that murders things, even if they resist it, after a few DDs.
Vaporeon @ Leftovers
Bold
188 HP/252 Def/70 SpD
Surf
HP Electric
Wish
Protect
Wisporeon. Passes on wishes to my teammates who need it in a pinch. It's SpA really screws over physical walls. Nearly a perfect Gyarados counter, and Garchomp won't like repeated Surfs. Unfortunately, she cannot handle dragons as well as I'd like.
Metagross @ Choice Band
Adamant
244 HP/252 Att/14 Def
Meteor Mash
Ice Punch
Earthquake
Bullet Punch
Probably the best Choice Bander to date. CBGross RIPS everything in two. Meteor Mash is the best move for it due to that sexy attack raise. It will always beat Skarmory one on one with Meteor Mash, gaining free attack boosts on the way. Easily a monster.
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Medicham @ Choice Scarf
Adamant
252 Att/252 Spe/6 HP
Psycho Cut
Hi Jump Kick
Thunderpunch
Ice Punch
Medicham? Wasn't he that beast from ADV? Yes, you're correct, Medicham is a monster offensively, with a Base 480 attack stat with no added items. Psycho Cut and Hi Jump Kick offer awesome coverage, while Thunderpunch and Ice Punch make Gyarados and dragons think twice before switching in respectively. Gets walled by Bronzong, but Bronzong is a pain anyway.
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Blissey @ Leftovers
Calm
42 HP/252 Def/216 SpD
Aromatherapy
Seismic Toss
Toxic
Softboiled
The queen of Special Walling debutes on my team. Unlike physical walls, Blissey can handle practically every single special threat in the entire OU metagame. Sure, there are exceptions, but Toxic deals a number on all of them not named Jirachi. Aromatherapy because status eats my team with a silver spoon.
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Gliscor @ Leftovers
Impish
252 HP/252 Def/6 Att
Ice Fang/Aerial Ace
Earthquake
Roost
Taunt
Gliscor is quite possibly the greatest and most stable physical wall in the entire OU Metagame. Not only does he lower his 4x weakness to ice to 2x, but he rids himself of that pesky rock neutrility. Ice Fang and Aerial Ace are two very good options on Gliscor, handling Garchomp and Heracross respectively. EQ is a nice little STAB that murders Tyranitar, 2HKO with only 6 EV investment. Taunt stops set ups, which is easy since Gliscor is pretty fast himself.
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Gyarados @ Life Orb
Adamant
72 HP/252 Att/186 Spe
Dragon Dance
Ice Fang
Stone Edge
Waterfall
A monster, literally. LO Gyarados rips through teams, moreso in late game. Unlike BulkyGyara, LO Gyara can deal some damage with no DD's. Stone Edge kicks other Gyara's where it hurts, whereas Ice Fang tells those Garchomps to get out. Waterfall is a STAB that murders things, even if they resist it, after a few DDs.
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Vaporeon @ Leftovers
Bold
188 HP/252 Def/70 SpD
Surf
HP Electric
Wish
Protect
Wisporeon. Passes on wishes to my teammates who need it in a pinch. It's SpA really screws over physical walls. Nearly a perfect Gyarados counter, and Garchomp won't like repeated Surfs. Unfortunately, she cannot handle dragons as well as I'd like.
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Metagross @ Choice Band
Adamant
244 HP/252 Att/14 Def
Meteor Mash
Ice Punch
Earthquake
Bullet Punch
Probably the best Choice Bander to date. CBGross RIPS everything in two. Meteor Mash is the best move for it due to that sexy attack raise. It will always beat Skarmory one on one with Meteor Mash, gaining free attack boosts on the way. Easily a monster.