You are definitely going to get a lot of mixed reviews because it always seems that a meal that was excellent to one person was terrible to another.
Depending on what you're planning to do that night (whether you want to go to a park or not) we really enjoyed San Angel Inn in the Mexico pavillion and Coral Reef at Epcot.
If you are not planning on a park, I would suggest one of the restaurants at DTD (there are several such as Rainforest Cafe, Planet Hollywood which we LOVE, and Captain Jacks).
You could also go to another resort - Boatwrights at POR is fantastic, Jiko at AKL gets really good reviews (most of the time

) and we really like Boma which is also at the AKL.
I suggest going to wdwinfo.com and going to restaurants section. You can view the menus and approximate prices of just about every restuarant on Disney property.
Once you decide where you want to go, definitely call and make a reservation. If you plan on using Disney Transportation to take you, plan on leaving your resort about an hour ahead of time. We have NEVER once had an issue with busses but a lot of people complain about them, and it's always better to be early anyway.