i use them all. got a Pod Xt pro, which i use through a set of studio monitors. a Laney TF400 hybrid amp, lighter to take to a jam session and it sounds quite good, especially for high gain sounds. then all valve, i have a Genz Benz El Diablo, which is a good modern high gain amp, a (made by Matamp) 15 watt single channel amp which just sounds glorious cranked and with a treble booster, and a Z-Vex Nano head, which is good but i haven't plugged it in recently. i also use my little sister's Micro-Cube and i quite like it.
overall, given the choice, i prefer the valve amps, but the others are all good. very usable, and sometimes excellent, sounds can be got from them all.