Depends where you are skiing/ how often you will have people with you.
If you are in an area that gets a lot of snow, then you need to have at the bare minimum, a cover for your truck bed in which case, it isn't much easier than a ski rack or sliding your stuff into a station wagon. Also, you should probably have a cover anyway if you are putting ski gear in there, cause people are shitty and like to take things. Cool cause you can put sleds in the back.
SUVs are awesome and I love the look. I have dreams of owning a very modified to be more logical Scout int 2. If you go SUV, make sure you will use it enough as an SUV to make the gas worth it. better for towing than a station wagon if you have sleds.
Station Wagon. Lower clearance. Still holds a lot. Gets superb gas mileage. The only issue I have is the lower clearance thing which for me was never an issue once with my outback driving around in Mammoth... where we have 11 foot snow storms. And I was getting up to 30mpg on the freeway.
Truck: If you will likely have sleds, can afford to get one that will seat 4, can afford the gas, don't mind shoveling out the back on occasion
SUV: If you may need to tow on occasion, can afford the gas, need the clearance.
Car: If you will be going long distances, want to save on money, don't plan to go offroading.
