For us...always the Flying Fish. We also love to do Fulton's for lunch on our last day which we spend shopping at DTD. Their chowder and seafood bisque are great and we split an entre. We're trying citricos also this trip which I hear has very good fresh seafood. I would love to try bluezoo but haven;t done so yet.
Can you like eat at Chef Mickey's and then the Concourse for lunch? I know they are both Table Service credits. But then I suppose as long as you don't run out you can eat wherever you want.
Don't know where the best is (I'm allergic but my dad Loves seafood), but my dad was NOT happy with Tony's seafood pasta, so I would suggest not getting that.
I've had great seafood/shellfish meals at Flying Fish, Narcoossee, Matsunomo Lounge, Portobello Yacht Club and Coral Reef. I've been generally disappointed with the seafood/shellfish at Cape May Cafe and Fulton's.