since 2012 all AUTO rubicons are 3;73. The reason is the W580 trans has a real first gear. It pulls. The 4:10 is now optional on the auto. I have the 4:10 in ours its to much gear for the stock tires. I can still light up the 35"s if needed. at 3:73 it will be a bit harder to use 5th. Wont tow well, but Jeeps never do anyway. With the rubi in low you will be fine off road too.
I would run it with 3:73, you will use 5th less. Its way to expensive to regear that new jeep. 4:56 gears are hard to get cost a lot. 4:88 will be over geared unless you are going 37"s. If it was 37" auto I would for sure go 4:88.
For the $ the factory 4:1 is well worth the cost of the tow pack/ option. 35"s no issue, even could get away with 37" on 4:10 but you wont need 5th.