We've got a bit in common. I am 6' 2" 215lbs. and went to the U of R myself! I have been in Jackson, WY for a season and skied the Stockli Stormrider AT, XL, and Schmidt.
Being a big guy who skies and carves agressively, like yourself, the AT was too flexible and damp, right from the start. So trust me, you can nix that one right now. I ended up ordering an XL in the 184 and a Schmidt in a 188 this year, and basically skied my way into the Schmidt, using the XL as my starting ski. I was lucky enough to spend the season working in a place where I could demo Atomics, Stocklis, Salomons, and Kneissls to my heart's content, and I came to conclusion that the XL was the best all-around feeling ski I'd ever put on my foot for hard snow and a bit of off piste. For absolutely pushing a pair of skis as hard as you can, the Schmidt held better on hard pack and performed the best of the three off-piste (89mm under foot, compared to the XL's 75mm). It's truly a beast of a ski that has no equal in my opinion, except for possibly the Dynastar Legend Pro. But for eastern skiing, you may be better off with the XL.
One thing you have to be careful about with Stockli is their sidewalls. For whatever reason, the polymer that they are using seems to be a lot more brittle that what's in other skis. If you look at this thread
where I detail both the XL and the Schmidt, you'll see what happens when you hit a rock with a Stockli Schmidt when straightlining at mach speed.
Granted, through the course of skiing skis hard, you're going to do some damage. But it's just something to keep in mind.
What surprised me so much about the Schmidt, though, is how well it carved on hard snow, and I now see it as my western all-mountain ski, rather than the purely off-piste, powder ski I thought it would be. As a heavier, more aggresive skier, you'll have the same experience. The Schmidt is still going to make you work, if not kick your ass outright, until you condition your way into it. But if you ski big lines and like to go at mach speed, you'll reap the advantages. The XL might just be the more appropriate ski for the East, though.
If you're interested in the XL, PM me. I am looking to sell a pair of 184 XLs right now.