Both my wife and I have 2014 JK unlimited rubis. Both equiped with autos trans. I have 4.10 she has 3.73 and honestly say I do not know which I prefer. We do quit of bit of highway driving on a daily basis 60-85 mph range. Thinking about it as i type I think I enjoy the 3.73 for highway driving and 4.10 for city driving. I too am considering a gear change for my rubi as I'm going with 3.5 inch lift and 34.5ish tires, and will also be adding forced induction to my build as well. I'm going with the wait and see method- do my mods drive around for a while and see if have to go down to 4.56.