Emerald custom starter ROM Pokemon

Breloom	(strong Pokemon overall with cool moveset options and Fluctuating exp. curve)
Medicham (Pure Power is OP, great early moveset, learns Hidden Power naturally)
Absol (huge movepool, some challenging fights)
Camerupt (fun STAB moves, low Speed adds challenge)
Tyranitar (unique typing, huge movepool, Sand Stream strats)
Celebi (unique movepool, typing and stats)

Hitmonlee (very powerful except on T&L, can't get paralyzed)
Hariyama (worse Hitmonlee with Belly Drum T&L + Fluctuating exp.)
Venusaur (strong double STAB)
Raikou (strong STAB and good coverage; Roxanne and Whiscash are problems)
Flygon (great typing and exp. curve; unique moves)
Mew (good all around; can Bullet Seed Roxanne)