No, that's great! I love all the rooms - I was just being nosy.
You can request a tower, but it's not guaranteed. You'd just call the reservation hotline and make the request.
As for which tower - Adventure tower is closest to DTD, but usually standard rooms aren't in it. Frontier tower is furthest away from DTD, followed by Fantasy tower. Chances are good that you'll end up with a parking lot view so those are going to be the option on towers when they assign you a room. I would, personally, request a Fantasy tower room. We've stayed in Frontier tower a lot lately, by chance, and it's really not much more walking than anywhere on the property, but it seems further when you're tired.
On the other hand, Frontier is closer to the kiddie pool side of things and Tarrangoa Terrace/Trader Sam's.
Basically, either one will do.
ETA: Definitely tell them it's your first stay at the hotel and hope for some magic!