That really depends on what you want to get out of the cabin. With an inside room, you will have no natural light coming through at all. which makes for nice sleeping!
However, if you are looking for location, you may want to check your deck plans to see where the deck 7 cabin would be in relation to all the clubs, pools etc.
Either way, you don't spend much time in your cabin anyway! You'll have a blast no matter where you stay!