It is multi-faceted.
I see the Rubi as two fold. Perfect if you are going to keep it stock. Plenty capable out of the box. Also great if you plan on minor mods (think no bigger than 35’s, lift) and think you will do “some” rocks as it comes with D44’s, lockers, 4:1 t-case etc…For what you describe you won’t necessarily need the lockers, D44’s, t-case and stuff. A Sport S will be great and save you some coin. Make sure to opt for the 3.73 (although I think standard on Sport S). With the money you save you can get the lift and tires you want. Probably even afford bumpers and a winch.
3.73 and a superchips might be ok for 35's. Personally I would go 4.56 too but for what you describe you may not need that deep gearing.
A guy that is going to tear it down and go tons, 42’s etc…A Rubi is a waste…Also a guy that never engages the lockers or disconnects the sway bar, the Rubi is a waste.
2008 JK X: Sold