A 9" wide wheel is too wide in my opinion for a stock height jeep especially if your looking for snow tires. I wouldn't want to put less than a 12.50 wide tire on a 9" wide wheel. A 12.50 wide tire is going to put you in the 33" tall range. With only 4.25" BS on a 9" wide wheel and a 33x12.50 or equivalent you will most likely/ may run into clearance issues with stock flares. Flat flares would eliminate the tire clearance issues though.
For stock height/ snow tire, I think a 285/70R17 on an 8" wide wheel with 4.5"-5" back spacing would be a better combination than a 33x12.50 on a 9" wheel with 4.25" backspacing.