2-dr. vs 4-dr.
I've owned a total of four JKs, two of each flavor, the 1st being a 2-dr and the current being the same.
If you really need the extra room then definitely go with the 4-dr. option, no questions asked...you'll thank yourself!
In my case, I always loved and missed the way the 2-dr felt on the road, the trail, the way it looked...everything really, and that's why I went back to one.
I don't have any dogs, or really need to haul anything substantial, the room is enough for me when taking a weeks worth of goodies for camping...
Ultimately, you have to make your own decision based on what needs you have and which one will better suit you!