I went with the Michelin Latitude Tour HP in 255/50R-20 109V. So far I have found them to be great in dry and wet conditions but haven't been skiing yet to try them in the snow.
I think they will work Ok as I have the AWD on my GT. If I lived in snow country I would buy snow tires for the winter.
Good Luck
Tom
We traded our (4) OEM Bridgestone Duelers for (4) Michelin Latitude Tour HPs for $170 total installed. 245/60R18 We kept the full size spare as is.