Yes, I'm replaying Emerald. I never got very far and it was very tedious. This is the new team, which I put more thought into.
Swampert
Surf
Waterfall
Ice Beam
Earthquake
Item: Amulet Coin
Ability: Torrent
Swampert is the best starter to pick in this gen, hands down. I can't even count how many times I've mono-Pokemon ran the game with this thing when I had ruby. It was the very first Pokemon I've ever gotten to Level 100, and this was the exact moveset it had.
Gardevoir
Psychic
Calm Mind
Shadow Ball
Protect
Item: King's Rock
Ability: Synchronise
Fast and powerful special attacker you can find really early game. Wally has one of these.
Heracross
Megahorn
Brick Break
Facade
Bulk Up
Item: Black Belt
Ability: Guts
I really wanted to use this in White 2, but I couldn't. Good thing I can in emerald! Bit annoying to catch, though. :/
Magneton
Thunderbolt
Thunder Wave
Metal Sound
Double Team
Item: Magnet
Ability: Sturdy
I love using this thing.
Banette
Shadow Ball
Screech
Curse
Will-O-Wisp
Item: Quick Claw
Ability: Insomnia
The first ever physical ghost type. Good thing Ghost is a physical type in this gen!
Crobat
Fly
Confuse Ray
Sludge Bomb
Return
Item: Soothe Bell
Ability: Inner Focus
Just as awesome as it has ever been, Incredibly.
Credit goes to PokemonDB.net for the movesets and Psypokes.net for the held items.