I would choose these for a small tourney arsenal.
Anger
Blue Vibe (dulled to a lower grit)
Blue Vibe (box condition)
I'm not a big fan of the BW series for tough patterns. The BW series bowling balls are very strong on the backend of the lane and can be hard to control on tougher patterns. I'm sure the correct layout could tame down the backend reaction to make it more useable on tough patterns but the BW series balls themselves are beasts on the backend.
I've been a big fan of Hammers equipment since the Doom came out. I personaly like the Pain, Doom, Blue Vibe, Anger and NM the best. To me those balls were top shelf on tough patterns. I'm not as thrilled with the current line up of equipment as I was with the last couple years pieces.