In reply to zakmacro:
if you want power above all else get a reactor.
if you want longevity and expedition capacity get a multi-fuel.
if you want minimal weight for non-winter stuff, get a pocket rocket or some such.
if you want to use it in a tent/bivvy, hang it or take it winter climbing then a jetboil has the edge.
what i like: its easy to use, safe as a stove gets, easy to swap canisters, easy to adapt to hanging, convenient, efficient enough, light enough and easy to get bits for. theres an adapter for a pan or whatever if you want to really cook, and tho theres been problems with the igniter, my original is still fine and gets first hit most of the time.
what i dont like: some of the bits are fragile (the plastic cup, the neoprene cover - no laughing jadias! - the lid doesnt always fit).
in the end its still the stove i take unless i need a multifuel or am in a lodge/civilization when i use a reactor. the big sumo pot increases efficiency for little weight so definitely get that if you can (tho you need an existing stove base, so they gouge you there).