Luvdisc for me. And I quote from Somgon.
"We'll take a generic Water-type, give it crummy stats EVERYWHERE except for Speed, give him a trait that doubles his Speed in the rain and the option to use Agility and call it a day. Luvdisc is great if you're playing with Battle Timeout, because its mere presence should cause your opponent to laugh at it for so long that you win the match." http://www.smogon.com/dp/pokemon/luvdisc