i think mutiny is when stept finally became what they had wanted to be since they started. the eighty six had some amazing moments but i think it still had parts that weren't "pro" quality. for instance, clayton's segment is insane but some of the shots with small rails to little tranny finds didnt belong in the same segment as shots like his ender, which looks like something out of tony hawk pro skater
mutiny changed the way i thought about stept. there wasnt a single shot in the movie where i thought "meh." they had matured to their prime and almost every part was interesting.
ten and two concerns itself a little more with a story than mutiny, but the skiing is still absolutely top notch. so my suggestion would be, what do you want more? story + good skiing or just straight up awesome segments with less ""filler""?