Real World info needed! Suburban/Yukon Delanli XL??

[bowtieguy79]

Looking to get back into a full size SUV again. We are looking at a 2011 left over Suburban LTZ vs a 2012 Yukon Denali XL...

What bothers me is the Denali is only $1000 more than the Suburban...but that isn't my real question.

Suburban: 5.3/6spd 3.08 Gear

Yukon Denali XL: 6.2/6spd 3.42 Gear

My 79 C-10 had a 3.07 gear in it, now granted it was powered by a 250ish Gen 1 small block, but it just didn't tow well. Did ok, but nothing like it did once I put in the 3.73.

I tow an 18ft steel deck car hauler with as much as 5k lbs on it from time to time and want the best bang for my buck.

What do you guys own, or have family who owns? I know how the NBS SUV's are, had numerous 03-06's. Also have had an 08 Silverado, so know the Gen IV stuff as well.

What am I going to like better for my towing/MPG? I know the Suburban is rated better than the YD, but I also have HP tuners........so...

The other draw back is DANGIT those Denali noses are UUUGLY!

Thoughts???