I wouldn't say BFG ATs suck at all, it just depends on what your needs are and what kind of driving you do.
But to answer your question yes they will fit. Personally if I was you I would just crank your torsion bars a little bit if they aren't already done, and run 32x11.5 BFG AT like 06Ford suggested.
I ran that setup on my stock wheels for a long time after I took my lift off and went down from 33x12.5 Duratracs on 15x8 wheels. I lked that setup a lot and was more than enough for the vast majority of people.
Was my truck more capable with the lift and 33x12.5 duratracs? Yeah, but I never felt like I needed more with the 32 BFG AT setup either.
I live in KY which gets all 4 seasons, live on a farm, and used the truck for daily driving so driving manners were also important. It saw pretty much the most average "all around" work that the majority of ranger owners will see from lots of daily driving, driving in the rain, working on the farm, gravel, snow, mud, fields, woods, etc and did just fine.
Just saying BFG AT suck BTW isn't really a good thing to say especially to a newer forum member that might not know a ton yet. Most will just take what you say when they read this thread right at face value and keep that opinion the rest of their life when it simply may not be true just because you posted that. Maybe the tires "sucked" for what you needed them for, maybe you got a bad set and yours truly did "suck" but just blantely making that statement without any other info or background info probably isn't the best thing to do. You've been here a long time, you know we don't need any extra help with people believing bad info