Currently I have the following balls drilled:

Apex Obsession
Brunswick Nemesis
Track Thrash
AMF Velocity (400 grit wet-sand, then Lustre King)
Faball Red Hammer

Recently I've only been using the Velocity and Nemesis.

I just bought the following balls used:

Throttle/R
Full Throttle
Animal
Reaction Arc
Messenger Ti Pearl

I'll probably only get one plugged and re-drilled for now.  Is there one ball that sticks out as the best to fill in a gap with my current arsenal?