Depends on your budget, but here's my very personal views!:
High budget:
Inventions buffet dinner (we didn't do the brunch, due to timings - the dinner is a little cheaper and a good range of characters - food great too!).
Walt's - best meal we've had in DLP. Beautiful
Lower Budget:
Hakuna Matata - best 'fast food' restaurant in the park - not open Wednesdays and Thursdays though. Gorgeous chicken.
Annette's - I am NOT a big burger lover, but I LOVED the burgers in here! So much so we changed our plans and ate here twice last trip!
Earl of Sandwich - great Disney Village cheap meal!! Lovely fresh hot sandwiches, and more!! Had been dying to try here for a while and it didn't disappoint!
Others - these are mixed reviews - basically places I WOULD try again, but have plus and minus points:
Cafe Mickey - cheaper character meal, food fine but not outstanding. You can be clever in here and share pizzas - we've always done the set menu as we've budgetted for it, and it's fine, if the portions are a little small. (Pizzas are big though!) Would go again if budget didn't stretch to Inventions!
King Ludwigs - had 2 amazing meals here in March, really different menu and tasty, and they have a happy 'hour' from 5 til 7 every day I believe. But went again in October and unfortunately were there the same time as a huge group and we were half ignored. But would try again as the food was good.
Lucky Nugget - Lovely interior but had a disappointing meal in here (in September 2012 - nothing awful, just overcooked and not inspiring - it's 'fast food with table service'), but have seen some people raving about it on Twitter recently so maybe it's improved.
Silver Spur Steak House - Similar interior to Lucky Nugget and food was pretty good all around. Not top of my list, but a great option for an evening meal INSIDE the park during those months where the park closes a bit earlier.
Auberge - great for meeting princesses. Lovely character interaction with (for us) 3 princesses, one prince and 2 of cinderella's mice. Food was good too as long as you don't mind fancier food, but it was a bit of a luck element too. DH had the beef which was amazing, I had chicken which was 'meh'. Dessert was disappointing too, but they made a lovely effort with DD's birthday even though we didn't order cake - they put a candle in her pudding! DD is a good an adventurous eater, and we're foodies, so with a Princess mad girl it was great to do. But for overall better value and food, if we were looking in this budget again we'd do Inventions (unless we create another little princess mad girly in the future!). Oh, and SO much more civil than queueing for hours at the Pavillion for a Meet and Greet!! lol
Buffalo Bills - I loved this. Loved the show and loved the food (tex mex type things) - but if you don't like that type of food, it's not really worth the money - DH doesn't like BBQ sauce type flavours, or chilli, or tortilla chips..... so I did well out of his meal!!! lol Plus they have refillable drinks....
Rainforest Cafe - I enjoyed it in here, loved the theme, but a bit over priced for what you get I think.
Planet Hollywood - like Rainforest cafe really, but I didn't like the feel of the place so much, quite loud, get nagged by photographers, but slightly better value food wise.
Blue Lagoon - Loved it in here, but if you're not a fish lover, there isn't much for you!! SO I was fine, unsurprisingly, DH wasn't! lol Worth a visit though - beautiful setting.
Heard good things about:
Toad Hall - apparently really good fish and chips.
Cafe des Cascadeurs - lovely, cheap, fresh burgers in an American style diner car - very good reviews but never been open when we've been there typically!!
Would avoid (personally!):
Restaurant des Stars - very 'meh', and staff were rude in there. Granted, others have a great a experience in there, so maybe worth a try as it's the only buffet restaurant in Studios. Dunno what it's like since Remy moved out though! lol
Colonel Hathis - Bit of a mixed bag - nice to have lasagne, pizza and that type of thing on offer (rather than just burgers) but the lasagne was a bit overcooked, but the pizza was ok (DH wasn't keen, but it was better than my lasagne! lol
Will stop now - this has gotten very long. Ultimately, make good use of the DLPGuide menus, and compare the places you fancy to reviews, and go from there.
Hope that helps!!
C x
P.S. Honourable mention to Restaurant en Coullisse - typical boring burger and chips fast food place, but always done us well (get in there before midday) and if you are clever the children's meals are more than big enough for an adult!! Great fall back on a budget, especially if you're in the Syudios all day and don't want to venture out to the Village.