I grew up near Ogden Canyon, and even though I've experienced it many times, I've never gotten tired of it. Monte Cristo is a little out of the way, but I know many locals who seem addicted to the place. It's a great place to see animals (moose, elk, deer) and is also quite rugged, despite a relatively close proximity to an urban area. If you're in the area, check it out.
Pros: Scenic and beautiful, Lots of wildlife, Great in any season
Cons: , Crowds, Poor facilities