I don't have any specific recommendations, but I wanted to put in my 2 cents. My family is filled with lots of foodies, we love food and we love going out to eat. While I do think your original plan is best revised, I want to also point out that if you're doing a once in a lifetime Disney trip and you love food, I see nothing wrong with what you're doing. Just keep in mind that you will be spending more time on dining as opposed to rides, character meet and greets, etc. If that is okay with you then that's absolutely fine.
Another thing is that a lot of people claim any dining plan offers too much food. While this is true for some families, it's not true for all. I'm not saying my family eats everything off our plate, but we choose our restaurants and food options carefully. For example, you will get the most bang for your buck dining at signature restaurants as others have stated, and when you go to these restaurants look at the most expensive entrees. Additionally, the dining plan offers you the convenience of not having to worry about carrying enough cash/credit to each restaurant--it's simple and easy. Finally, keep in mind that leftover dining and snack credits can be used for great souvenirs to take home to preserve the Disney magic (e.g rice krispy treats, mickey cookies, popcorn, etc.)
So with all these things in mind, I am just saying that for a once in a lifetime Disney trip, don't worry too much about the critical feedback on the dining plan. Best of luck and enjoy your trip!