get one of each
I wish
It depends what you are going to do with your rig.
Have you had a 4x4 before? More off road or highway. Do you want to do a build up?
The 4-door Rubicon JK looks pretty darn good. It is still a Jeep. Removable roof and doors, water leaks, wind noise. The black hard top will get hot fast fast in the sun. Off road with front and rear lockers and more flex with the sway bar dis-connect system it will excel
The H3 with the Adventure Package is a great package and soon to be available with a V8. The H3 is very comfortable and stable on and off road. You can put a roof rack on the H3 easier than the JK. The H3's 4x4 system is more complex (electronic swithces instead of levers etc) It also has independent front suspension which makes lifting it more difficult.
I still have my TJ but drive it only about once a week now.
Enough said since I have said it all before. Get what you want and enjoy it while there is still gasoline and open trails to explore.