you understand very few tires are actually what their stated size is? close but not exact.
I wonder how many people go to a lumber yard asking for a 2x4 and rejecting them all because they're not exactly 2x4
if you're running stock D44 axles I'd do 4.88 for reliability (IMO works well with 35& 37's), lot of guys also run 5.13 but you lose the ability to lock out OD on hills/ freeway (RPM climb too high).
The R&P are also thinner and more at risk to failure.
with the 3.6L 4.88 seem to work really well, I've only driven one newer Jeep, automatic with 35's and 4.88 gears and it was impressive.
I have a 2010 3.8L, 4.88s PR44 front, stock D44 rear, BFG KO2 37's w/beadlocks it's held up well, still get decent mileage and I can lockout OD as needed without worrying about RPMs climbing too high.
When I put the 35's on it's got a little more go than the with the 37s, but not enough to make me want to install 5.13 gears