What do you all think, 4" or 6" lift? 72 k20

[Ofnaman1]

I need to replace the springs on my 72 k20, the previous owner put one odd ball front spring on it at some point, and the truck drives really weird. With that being said, I've been looking at 4" lift's, but recently I've been thinking of going with a 6". I also have been going back and fourth on using super swamper skinny tsl's (34x9.0x16), or going with the sta super lugs (900-16). I have also been looking at the super swamper bigger ltb's (35x12.5x16). I had my heart set on the 4" with the super swamper skinny's, but then I found the sta superlugs and really like the look. My concern is the sta's will be a bit too much for a 4" lift. I plan on driving the crap out of the truck, on and off road, so I want something that will ride relatively decent, which makes me lean towards the 4" more. Any input you have will be appreciated. I will also state that although I love the look of stock height trucks, this one is getting lifted at least 4". Thank you.