Contemporary is a good spot. Also, if you can hit it right, Characters In Flight. We were on it one night just in time for Fireworks. Pretty good view.
The Poly and the TTC are the best simply due to the viewing angle. Wished is meant to be watched with a straight on view of the castle. Both the Contemporary and the GF are off center by as much as 45 +/- degrees. The TTC and the Poly are at the perfect viewing angle.