Zefal HPX. I've had others and always come back to this pump. I just got a new one today so I can move the old one over to my single-speed.

It fits very nicely along my left seat stay. I have pumped to 130psi with it, and could have gone higher.

I've used the RoadMorph, and it's fine, but I wouldn't buy one as long as HPXs are available. RoadMorph is a good 2nd place though. I just don't know why you need to mess with the floor action. I've never had a problem with the traditional frame pump action, and felt like setup was too cumbersome with the RoadMorph. Plus, there are too many parts. Carry it around on your bike long enough, and stuff's going to get gummed up or broken -- fewer parts means more reliable.