The only MK restaurant that we like is Skipper Canteen and we quite enjoy it. We love the theming as no matter where we sit there is something fun and interesting to look at. The servers are fun with their corny jokes and puns. We also really, really enjoy the more "adventurous" (for Disney anyway) food. I can't think of a single thing we've had there that we didn't enjoy. We average around 3 trips a year to WDW and eat at Skipper's probably 2 out of 3 times.
I'm not sure it's that unnoticed though. It gets a lot of love from places like DFB and the rest of the Disney - verse. It may not be that popular with your average theme park guest due to the menu, but that's fine with me! It makes it pretty easy to snag a reservation

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That said - if the menu is scaring you off, as others have mentioned leaving MK and heading to a resort for a meal is a great option and one that we do a lot as well. There are lots of great choices on the monorail line, and it's pretty easy to get to WL on the boat.