We like the Premium outlets, which are right near Disney. They are alot newer, and the stores are very similar (but more upscale).
Belz is very spread out, and you will either have to do alot of walking or driving from building to building. Some of the shops are very old, but Belz does have more vendors.
Here is a link to the Premium outlets: http://www.premiumoutlets.com/outlets/outlet.asp?id=17