What Jim said was basically great. Sollie makes a great powder ski, always have since the Force 9, no matter what some folks say. They do lack on groomers, but so what? I found the Gun (188) in both wood and foam (foam is lighter and snappier, wood more damp..) to be really fun off piste- quick and turny, fun in bumps(!!), stable in 188 (not at all in the 174), with a smooth flexing round turn. I found them confusing on green groomed runouts and even fell over once. I guess the 101 waist + massive sidecut takes some getting used to on the flats..or I'm a dork.
If the Goats are anything like my Mantras but softer they should really rock in powder. Also, Sierra pow tends to be heavier (than our Utah stuff), so that Volkl authority should come in handy. Bushwhacker consistantly syas thyre realy grate, and other thna having a spede prblom, he's got good jugdment.
The Gotamas are gorgeous, with next season's gold 183's already sold out in some shops here, even at $750. The Sollies you can pick up anywhere (baby blue/ grafitti 188 foams) for under $450. The answer of course is to try them both back to back on the very first pow day next season. Both are good skis, with the Goat having the edge in popularity.
I got in trouble this year because I ordered some PM Gear Soft Bros that never came. In the meantime I picked up some Mantras and loved them like crazy, but wanted something softer for the ultra deep- I shied away from Goats because of their "long turn only" rep, and found some 05 188 Gun labs with the wood core, the handmade ones. These exel in the blower. Then I got a pair of blem Bros and I'm really digging them, especially in funky spring snow, ice, everything but pow so far because we ran out of it.... The regular Bros should arrive anytime now and after spending some time with Bushwhacker he's got me really curious about the Gotamas. So there's a potential gear "problem" developing. What makes it worse is that it's now summer, although it snowed in Park City yesterday, but it didn't stick...