although i was at sugakush, it was only half open due to a contest. so im gonna have to say burke mountain vt, where i ski every weekend. there park has progressed so much and im stoked to see it upgrading like this!
haven't made it outside PA, but let me tell you, if 7 springs wins best parks in the east again this year it will be a testament to how much of a joke transworld snowboarding mag is. our parks sucked ass this year with the exception of the streets, which were awesome. As far as an all around park goes, Boulder had us beat 1000%.
Sugarbush. Haven't been to too many other places, but I can't imagine anything else being more fun. Jumps are a little small but super poppy, I was taking them huge. Rail game is pretty unmatched in the east coast.
Spent almost my entire season at Cannonsburg, excellent park this year. Spent a week at Keystone/Breck, they both had awesome parks for it being pretty early in the season.