Pokéathelon, hands down.
In truth, I always hated contest. Feels demeaning to the pokémon, making them dress up and making them dance. Bleh. At least, in Pokéathelon, they're actually doing something! Using thier skills to complete athletic events.
.....Plus, I'm better at Pokéathelon. I suck at Contests. (I've only ever won one Master Ribbon....In Beauty, with my Breloom.)
Just my Two Cents, though.
;308;Nemmeh;107;