Finally someone mentions Squaw. There's plenty of sick stuff there. I've not skied some of the resorts mentioned though.
As far as East Coast/West Coast. There are great skiers everywhere. Ice skiing, which easterners get more is probably more conducive to racing. You do get ice out west and plenty of complex snow (windblown, layering)- BTDT and when you're expecting really nice stuff on one of your only trips it's a let down.
Out east we tend to get more freeze/thaw and rain over snow so packed powder and soft snow conditions are rarer. There are less steeps and shorter ones although the trails are narrower and more crowded on average if you want to factor that in. MRG, Killington, Stowe and Sugarbush come to mind as having some tough trails.