OK, I'll chime in on the the towing issue..
I currently have a 2018 Tahoe LS Custom Edition 2WD with the Max towing package. My vehicle is rated to tow 8700 lbs. !!
I have towed my car hauler with my 1966 Chevy C20 LWB on it for a couple of hundred miles and had no problems whatsoever.
I have actually towed my JD 4510 Tractor with FEL & Rotary Cutter on it to go work at a friends place.. again with no problems.
I just looked up the ferd and Yes, they are rated more than my Tahoe with a 3.73 gear ratio!! I have a 3.42 gear
and get 21-24 MPG cruising at 77 MPH with NO buffeting or excess wind noise.
In addition, I am going to order a new 2020 Tahoe LS Custom Edition before the new platform comes out so I can get the last of the solid axle 4WD Tahoes. This may well be my last new car but I need the 4WD to go on my tour of state & national parks and the unpaved roads they offer. Next thing on my bucket list.
Anyway, just my 2c worth..