Thanks to everyone's input, I've upsized my JGC tires. I went with 275/65r18 on original rims. I had a preference for the terra grapplers or the destinations a/t. But after discussing with the guys at the tire shop, I went with Fuzions Xti. Thread patterns does look less aggressive compared to the nittos. Good reviews over the internet also for them. Will see how they handle. No rubbing. This is with no QL suspension.
Changed also the size of my spare tire to keep the same diameter of 32". I wanted the spare tire's lid to fully close. 255/70 do fit, but it lifts the lid on one side only at about 1/8" or less after it's fully closed. However, when the tire was completely deflated, it fit no problems. At 275, it didn't close.
Now, I waiting for other lift kits to come out...