TiggerStac -

Congrats on your possible first visit to the Grand, you will love the resort!
I understand your indecision, it's tough to choose. All outer buildings except Sugar Loaf have a TPV option, with Sago Cay and Conch Key getting the most positive reviews for great views. Sugar Loaf, of course, is the outer lodge club level building, and though it does not have TPV rooms, it has very pretty views of the marina and pool.
Good luck with your decision! Hard to make a bad choice, both options are great. For me, the access to club lounge trumps the view, as we've had great TPV rooms in the past. But, if I had a little one, or it was a first stay, we might have to go with the view.
BTW - if you can swing the main building club level, there is the possibility for both club level AND theme park view. Just a thought.