what are good wheel size to go 4 wheeling on a hummer?

[Dee Skinna]

im doing an essay about hummer and i need to know what size wheels are good to go 4WD with ?
need help ASAP
essay is due in 2 days !

 

[45 cal]

The 1s the come with 315 X 70 X 17 BFG AT/KO