+1 Very well said. 35" on the Rubicon without lift is the way to go imho. Plus no issues with FCA warranties. Plus I agree with you on your other points.If you feel you need 37" tires, surely you would want to upgrade the axles and gearing on a sport (unless you just want them for looks on the road). Why not get a Rubicon and just put 35" tires on it at your first tire replacement? You'll have better/stronger axles, 4.10 gears (which won't be too bad with 35" tires), a 4:1 transfer case, 7" uconnect, power windows and locks, highline fenders, higher suspension than a Sport, and all the other small Rubicon extras. You probably won't even need a lift at all.
I also agree with most comments made about re-sale value. All the wranglers hold their value pretty well. What doesn't hold it's value is aftermarket modifications. So a Sport with aftermarket modifications will not hold it's value as well as a stock Rubicon. You don't get much return on aftermarket modifications whether you put them on a Sport or Rubicon.