Most every paint by RPS, Draxxus/Diablo and Procaps.
I shoot a 2K5'd GZ, Excalibur, Viking, Texas Storm, Ripper, Ripper 2 and Ripper 3 Intimidators. I run a Halo or an Empire Reloader B (and now a Pulse) with a PMI Pure Energy or Crossfire Tank.
I primarily use a CP Two piece kit but have friends who use Longbow Kits, Dye UL's, Redz Pepperstix and Stiffi's.
Incredibly consistent, bright fill, harder shell.
This is probably my favorite paint for playing in the Winter in Virginia. Procaps/Draxxus makes this with a thicker than usual shell so that the cold, dry air doesn't make the ball overly brittle. They use the same tolerances for making inferno, hellfire, blaze which means that you get a perfect, consistent shell each time. An especialy important consideration as dimples and a thin shell in dry air means chops. The surprising thing is with the thicker shell you still get a nice break when the ball impacts a player. The fill is thick and is a nice, distinctive, royal blue. It's an unmistakeable color when the ball hits. This shell is way too thick for Spring/Summer/Fall play but is amazing in even the coldest temperatures.
Top notch paint that shoots well out of high and low end markers.