What's wrong with staying in Canada? We get some pretty good runs here in Alberta/BC eh? lol
I enjoyed boarding all over the east coast, Tremblant, St. Anne, Stoneham, Mt. Sutton, Jay Peak, Loon, Cannon, etc.
I've had great trips to Jay Peak, and with the water park there it'd be a great family trip. Also quite reasonable for ski/stay deals.
If you're into extremes though you just can't beat the rocky mountains and other ranges near them. We have chutes, bowls, cliffs, etc. to hit which are fantastic if the east gets boring.
That said, I don't ever remember being bored at Jay. If the snow is just right their glades are an absolute blast! It's also the first real mountain I went to when I was a wee pup. Got a soft spot in my heart for Jay!