From my experience, and for my hunting style, I prefer a tent I can stand up in with a good option of a heat source, instead of a camper.
The camper is luxurious for sure, but it greatly limits where you can set up camp and since I'm lazy and like my sleep, I prefer to camp closer to where I'll hit the backcountry, versus have to wake up 45 minutes earlier. If your priority is to enjoy time out there above hunting, which is totally cool too, then a camper will be comfy, cold fridge, hot shower, real toilet and an automatic heater to enjoy.
For tents, you can certainly go a traditional wall tent, but personally I prefer a faster setup tent like previously mentioned Kodiak (if weight is no issue) or a Snowtrekker. For size, since truck camping I'd go with the 10x14 or 14x14 as might as well be comfortable with space. Just keep in mind the bigger the tent, the bihe stove you need when temps get really low.
For heat, many guys use the buddy heater in the Kodiaks. That's the shortcoming of the kodiak, he integrated floor and no stove jack from the factory. I believe the Springbar tents is where Kodiak got their design and do have stove jacks. Both Kodiak and Snowtrekker set up easy.
Since at the truck, ideally I like to have propane heat for immediate, quick warm up when wake and getting back after dark, without having to fiddle with a fire, but then have wood stove backup if need to dry things out. Rifle season, when I'm in the tent much more after dark and before bed, wood heat is great.
Lots of options and you'll probably go through some trial and error based on your own personal preferences.