I have an 08' Rubicon and I mostly bought it for the D44's and lockers.
I have had a great time with this Jeep, but as time and money allows,
I've sunk more and more into it.to progressively do harder and harder trails.
As of now, all axle shafts have been broken or bent, upgraded,sleeved,c-gusseted,re-geared to 5.38
Running 37's and flat fenders, going up to 38's, but it's maxed out there
until you do an axle swap, so I'm of the opinion, if you had enough dough
I'd buy the sport,and get the UD60's straight away and build accordingly around those.
Just my opinion,of course.