I've always loved mono-type. Especially when i use mono-fire or fighting.
My favorite team
Breloom (Seed Bomb, Spore, Focus Punch, Stone Edge) @ Toxic Orb
Gallade (Ice Punch, Swords Dance, Psycho Cut, Brick Break) @ Life Orb
Poliwraith (Rest, Return, Waterfall, Bulk Up) @ Leftovers...