some good points some far , heres mine:
colorado is settled A LOT more then utah therefore your options of living are a lot better. the weather in colorado is def more CONSISTENT then utah. I work and live in breck and people visit the town constantly from park city because the weather can get shitty warm quick. however, the warmer weather can be a plus cause utah gets more snow overall and in larger quantities at one time. colorado it can be so fucking cold that you barely get any snow at all, BUT its more consistent in terms of snow quality. colorado's season length is a lot better with the exception of snowbird in utah. summit county powder is very ironic. people talk some much shit on the pow ridiing, but if you simply get out there for the first two hours before everyone else i promise you will have an awesome fucking time. yes, the runs are short, but they are steep and can be fun as hell. vail and the beav are a lil diff in that their runs are longer but flatter with the exception of stone creek chutes and east vail chutes. utah has all of the above and nothing compares to powder mtn near odgen NOTHING, it is like the silverton of colorado in a way. Overall living, yeah utah has its rules but stereotypes are stereotypes so dont jump to conclusions, you can still have fun utah you just wont find as many alcoholics as you would in colorado (good thing or bad thing?)
park city is a good option in utah, however, colorado has many "park city" like towns - aspen breck crested butte telluride steamboat vail avon durango- where the mountains are RIGHT there with the town. some people see this as bad of course because population increases skiers on the hill and more people to deal with. i like people and being around them.
and that is why i chose colorado.