Aleyeska definitely is pretty awesome.  Lots of good cliffs, jumps, backcountry tree-dodgin', groomers, park, you name it & it's there.  The snow is usually pretty sweet up there too.  We totally got DUMPED on this last week(8 fresh inches from last night), for a total of about 2 feet in Anchorage.  Alot more outside of Anchorage.  Skiing is pretty epic, other than the avalanches up in Hatchers Pass right now.  Be careful up there.  As for me helping you out freestylin' your asking the wrong person.  I've only skied for 1 year(unless you count going 4 or 5 times a year over the past 8 years).  Got plenty of mountain time last year on the rental skis(probably 500+ runs), but this is my first year freeskiing.  I'm lovin' it so far!
Tim