I know all you guys agree on Dv888, but I have to say this.
I would choose the Raptor. It plays very smooth, almost vibeless, an air cutting shape ^^ for speedy play, 2 removable caps for different play, feel and weight, 2 sets of extra response pads (3 in total), comes in many colors and has a nice laser engraving on the side.
People tend to claim that the Raptor is smoother than the Dv888 but neither is a bad choice. I just had to shove my opinion out there.
The Raptor comes responsive but if you clean it or swap it, dead unresponsivenes.