Quite possibly my top Pokémon on my team is my Malamar, Quoil. Despite Malamar's seemingly-bad stats, Quoil is a beast to use in battles, even when he's not EV trained! Even when he was an Inkay, the use of his moveset managed to take out a Mewtwo, and mere minutes after he evolved, his set of Reflect/Swagger/Foul Play OHKOd a Mega Lucario and pretty much destroyed the rest of my opponent's team with the same set. This motivated me to start EV training him.
Other favourites of mine are Tuscany the Axew (who's shiny), Skylar the shiny Mr Mime (who was found not even 24 hours after Tuscany), Fang the Granbull (present on my team when I found both of them), and Cyndissi the Aerodactyl.
3DS FC: 2707-2741-9594 Be warned, I may jump to epic fails of conclusions and general other errors. In advance, I apologise.
Gotta be Brrgh, my Avalugg. He's a latecomer but my God, he's earned his keep. Between being my favorite Gen VI mon for adorableness alone, he's actually become quite the killer! He destroys fairies and dragons alike all while being super cute. He is perfect and I will treasure him always.
"No, we're doing this my way. No Google, no fancy textbooks - just six tall cans of Steel Reserve and a copy of the Bible."