275/65 R18 'E' Rated tire recommendations

I currently have 275/65 R18 'P' rated tires. The tow vehicle is a 2013 Ford Expedition EL. I'm considering upgrading to LT tire to improve handling when we are towing our camper. I've been told Michelin Defenders are good but I also want to get opinions on what other people are running and what they think works best.