If you're on DDP, I would say Le Cellier. If not, Via Napoli for the pizza.
I agree with this! We love Le Cellier. Maybe I've just been lucky but I have never had a problem getting a ressie there. Of course, I always go online at exactly 0600 CT at 180 days out to make dining reservations for every trip. lol In fact, I have a Le Cellier ADR for our upcoming Oct trip and two for my upcoming Dec trip (lunch and dinner). Once dinner becomes two credits though, we won't be going back. Lunch of course will still be one credit, so we may go for that. I go to WDW several times a year and nearly always get the filet with mushroom risotto every trip. I may change my appetizer and dessert, but the entree nearly always stays the same.
Despite the hype it gets here on the Boards, I'm not a fan of their cheese soup (too salty), but love their duck, mussels, or tomato stack appetizers. I also love their chocolate whiskey cake and maple creme brulee. For two credits though, no way!
If I want a two credit steak I'll go to Flying Fish. I think their char crusted steak is the best on property and that includes the ones at Yachtsman.As another poster said though, why not try both. That's what I'm doing in Dec. I have Via Napoli for lunch one day and Le Cellier for both lunch and dinner that week.

