The Stevie Wonder is closest to the slide and next to the volleyball pit. #10 would sit right behind the beach in the far right bottom corner of this picture....
The Stevie Wonder is the far right cabana in this picture
And a closer look - it is the one on the left in the picture:
Cabanas 7 (Yellow Submarine), 8, 9 and 10(Stevie Wonder) from left to right on the beach side of the pool...
7,8,9 and corner of 10 (Stevie Wonder)
This is pretty similar to the view you would have from #10.
The only difference between #7/#10 and the regular cabanas is that you get some extras with the price (more water and soda, etc) and it has a mural backdrop rather than just the curtains.
This is the yellow submarine cabana, but the Stevie Wonder is similar.
This video has the Yellow Submarine cabana in it. Similar in amenities to the Stevie Wonder
http://www.universaltravelagents.com/videos/hardrock.html
All the cabanas have dedicated chairs, a table, a tv, a ceiling fan, a phone, a mini-fridge.