I have BDS lift on my new truck. Its been a lot better than my other lifts. I had pro comp, superlift and fabtech. In my opinion BDS is better made. I wasn't sure till I put the lift on and took it off road. Feels better on the road too.
You can run 35s with 4" lift with stock offset. You will have no problem running 33s.
I had BFG KM2 and loved them. Got 77,000 miles out of them of course they where 10ply. Also 33" tires. Pricey but great tires offroad and on the road. If you can't get bfg km I suggest Toyo open country mud tires.