I would concur with pondhopper's description. I considered wider tires, but ended up staying with 245's when I purchased new BFG KO2's. I wished to avoid any issues with rubbing, and have not experienced any. I find any added tire HEIGHT to be more important than width. Only a minute difference gained either way: width verses height and height wins out for me.
2015 Cherokee Trailhawk:
Granite Crystal, 3.2L V6, 8.4 Nav, black leather, sunroof, tow, tech, comfort/conv, no hood decal, 9 speakers, CD player, Maximum Care lifetime warranty, Mopar first aid kit, rear rubber cargo mat, Thule Aeroblade cross bars (black), Thule Rapid Aero feet, Kuat Vagabond X cargo basket, RRO rock rails with smooth covers, Mopar door sills, Raingler ceiling net, Raingler seat headrest handles, MFC aluminum lift kit, RRO winch bar and Warn M8000S winch, BFG T/A KO2s