Collins is usually too busy to actually learn much, I think Panorama is much better, especially when it gets colder and everyone moves to Collins after lunch.
If you go during the week, they're both perfect to learn on..
The bunny hill at Mt Seymour is really too small, the other runs are maybe a bit too tight? Grouse I have very little experience with. The gondola and what not were just a hassle the one time we went up, never been back. I should try it again! But actually, I spent that one night helping my girlfriend at the bunny hill and she loved it. Lots of room, not steep at all.. But very short.