I'm in the same boat, I'm looking for a good set mult-use 33" tires. I'm considering Duratracs, Cooper STTs, and the Mickey Thomson MTZs.
The I'm concerned the Duratracs are too tight of a tread for the mud and Moab wheeling I have in mind.
I like the Cooper STT, I had a set of the STs on my last dually truck and was really impressed with the winter traction of them. The STTs look like a more aggressive version of them. These are probably my first choice but....
The Mickey Thompsons are a very similar tread and about $50 cheaper per tire(based on Canadian Tire online pricing) so I may have to look a bit more closely at them.
I can't believe how much the price jumps to go from a 15" rim to a 16" or 17"! Like $60 a tire! Should they cost less since the hole in teh middle is bigger so it uses less material?
Fortunately I'm not in a rush so I can watch for something to go on sale or maybe find a good Kijiji deal.