RE: The B/W Questions and Answers Thread
I use his list except for two alterations (plus I go to Route 3 for Basculin):
Defense:
Cofagrigus (2 Def) - Relic Castle B2F and below, 50% encounter rate
HP:
Victini (3 HP) - Liberty Garden, 100%
Audino (2 HP) - Shaking grass patches, depends on route but 100% chance on very early routes
Munna (1 HP) - Dreamyard (I only use this if I need to get exactly 1 EV in the stat after all the Victini kills), about 20%
Alternatively, everything in Route 4 (Scraggy, Darumaka, and Sandile) gives 1 Attack EV, but then again you need to deal with sand damage, so it isn't as good as Route 1. Pinwheel Forest is good, but the things in there can spam Protect and Stun Spore on you, messing you up. Cofagrigus' only offensive move is Curse, and Krokorok aren't that hard to run from (when you switch to something else).