I agree with Minerva!
Basically, make sure you stress "inner courtyard." The "other " (and IMHO, less desirable CY view) is of the quiet pool. I am always shocked that the WL charges the same rate for both inner and "quiet pool" CY views.
Also, I personally would want floors 3, 4 or 5. Floors 6 and 7 have solid wall balconies, and like Minerva said, it makes a HUGE difference. Basically, you have to stand at the edge of your balcony to see over it...it is not a "slatted" blacony like all the other floors. So when you are in your room looking out, you see a wall with a little bit of sky above it.
Floor 7 is all concierge level. If you got a free upgrade to concierge (which I believe is pretty rare) I would take it, but I would be upset about the solid balcony!
I agree all inner CY views are great, but we always feel extra lucky when we get a room that faces straight out to the lake. I believe I had room 5041 last trip, and it was great. If you PM me with your email addy, I will email you a pic of the view...I am so sorry, I do not know how to post pics on threads!
