These other guys will do a better job than I explaining where to go. The above posts have it pretty well nailed as far as I know.
I prefer IP area over West because it seems to always have much less traffic. The trails in and out of West are so beat to hell everyday my brain rattles on the way in and out for miles and I cannot stand getting stuck behind lines of people on the trails.
We leave our sleds, fly in, and rent an suv so it’s no biggie for us to drive back and forth to west for good food and drinks.
West takes the cake for bars food and night life. But I’ve never been let down in IP either.
Not being a local or super well versed in the area, I find all the riding area’s these guys list in the forums here and look them up on google maps, find the best terrain I can, and so far have never been skunked in finding the “Cooke city” riding Im used to and untracked snow.
Love this area so much we’ve almost stopped going to Cooke the last few years. The ease of getting here, food, and extensive riding areas are tough to beat!
Can you give a little more info on flying in. I was looking for some flight info awhile back and it looked like any flights into Bozeman would have to go through Minneapolis