I had a Crank Bros. pump, but switched to a Topeak Road Morph. The guage on the CB was nice, but by the time I got it on the valve stem, half the PSI was gone.
(I'm a touring type, so in the morning I just want to check the pressure and bump it up about 5 PSI or so before starting the day's ride)
The Road Morph lets me do that almost as easily as a real floor pump.