i would go for sport s, i would think you'd regret not having the options..if you have any doubts that you want the options, then do it.
do you have to have a new 13? i spent a few months looking and was able to find a 12 at an independant dealer. scored a great deal, as it already took its hit when it rolled off the lot last year. i just missed a 12 sport s back in december by a few hours, but scored a 12 sahara few weeks ago. worth the wait and work if your not 100% needing a new JK. factory warranty transferred to me as well. if your into this, the scenario you want is: someone trading their 12 into a non-jeep dealership. for example, in my situation, range rover will only have range rovers on their lot. they sold it cheap to an independant dealership, and i was able to score it cheap too. if my sahara was at a jeep dealership they would have priced it $3500-$4000 more, as they can slap a pretty 'certified pre-owned' sticker on it.
Current: 2012 JKU Sahara
02 WJ OVERLAND 4.7 HO - K&N Cold Air Intake - Kolak 3" Exhaust
99 XJ Classic 4.0