I actually recommend Hollywood Brown Derby for your Fantasmic Package dinner. DH and I did it back in May of 2001 and it was one of the best choices we made!
Definitely Mama Melrose. Although I have not eaten dinner at H&V, I did have breakfast and I have one word... YUCK!!! It was the worst meal we ever had at WDW - no exaggeration. We love Mama Melrose and go each vacation.
Mama Melroses is consistently rated one of the best WDW restaurants. You seldom, if ever, hear a complaint about the food or service, and even the prices are reasonable for WDW.
We have eaten at both several times and really enjoy each. Try to decide what your group will be looking for - there are more choices and variety at H&V, but I have to say the food at MM is very good. Have fun.
Lisa
It depends on whether you want a buffet or not. Since we do not enjoy buffets very often we would rather eat at Mama Melrose's. We ate there a few years ago and really enjoyed the food.
We have enjoyed MM for Fantasmic pkge. Great choices for everyone. Have also done Brown Derby and it was fantastic..would do either again, except BD is a bit expensive.
Connears
Have been on the Fantasmic package at H&V - wasn't too impressed. Food average, service poor and felt we were rushed. I want to do the package at Mama Melrose this trip but am hoping they change the rules so you can pick from the menu rather than having the set menu.