I had a Vutec 1.5 gain brite white screen that I was extremely happy with. Since then, I bought what I thought was a Draper M1300, but it turned out to be a M2500. For my purposes, the M2500 performed quite poorly, with hotspotting and color shifting. The Vutec frame was much more solid, and the screen attached with velcro (rather than snaps), allowing it to be tensioned and retensioned until perfect. Between the Vutec Vu-Easy and the Draper M2500 with Cineperm frame, it was no contest....the Vutec was much better.
I have gotten mixed opinions on the Draper M1300 vs. Vutec brite white 1.5 comparison....some say the M1300 is better, and others say the Vutec 1.5 is better, but since I have never owned a M1300, I can't even give you an opinion.
From what everyone tells me, the Stewart is the hands down best, but it also has a high price tag to go with it. If you want the best, I suppose the Stewart is the answer. But which one is the best value, especially with motorized screens, I really don't know. With my very limited experience, I would buy the Vutec for $1245 just because I was so happy with the one I owned. For now I just built a DIY screen for about $75 until I can make a decision for myself.