8 in for each, maybe 10 for 35's even 33's is almost a toss up,
What about the tire sticking out further on an 8 and snagging on the rocks? Where a 10 in not so bubble like?I run 10's on my rubi, and 9's on my YJ. It is all about personal choice. Some claim that you will loose less air pressure, when aired down, on 8" rims. I know from personal experience, that a 8-9" rim, will get less rock rash, than the 10" rim.