Not that huge a fan of the Reaper vs the V2, but damn that is one awesome cap, PunksDead.
Favorite of the caps I own is my Nubs clear blue heart. I'll try to get a better pic with white back light as it looks great.
Favorite cap overall would be the BroBot V2 Purple Bliss. Saw it on a preview sale in Bro's thread and checked daily on it to see when I could try and get one. Sale seemed to never happen.