I would say a Mach 404, but since that is not one of the choices i would say 12volt. I have heard many good things about the ricochet but it does cost much more.
Also what will this be used on?
Benchmark black 45 frame,
KAPP green metal panel grips, Green ANS Quick pull bolt, Green ANS gen x inline regulator, green Ball detent,Kapp green beaver tail, Green Shocktech trigger shoe, Green KAPP pump arm, Green Shocktech Pneumatic Hoses, Green ANS 3-way, ANS actuator rod,Low pressure chamber for front pneumatics,ANS Mini-Ram, KAPP Green beaver tail, lapco Bigshot barrel, black KAPP on/off drop zone cradle,Zap Mach 404 hopper, 12 VOLT REVY