From what you have said I think the hybrid with winter tires is your best bet. I live in the Canadian Rockies and am getting a 2.0 eco boost AWD. Price is not the main issue for me. My wife wants AWD and you can only get that with the 2.0 eco boost.;)
Carbon build up on a direct injection is a fact of life. In 100k kilometres (60k miles) you have to walnut blast the intake, it is just part of regular maintenance. I have dealt with this on other direct injection engines. Not a big deal for me. Oil catch can will also help with carbon built up.