I'm sure others will chime in, but here's MY first Dopey input!
After the Marathon (and I'm talking like immediately ... through the finish chute, pictures, move the car) and we were starving. Like, would eat anything. We went straight to Electric Umbrella and I'm fairly certain we waited twice as long for the food as it did to eat it.
Then, it was a change of clothes and a refresh, a meet-up with the rest of our group and then a ride on TT.
Then we just drank and snacked around the world. None of us could really appreciate a true meal until the next day - your body just goes through SO much during the course of Dopey.
Personally, I would pick a place you like that makes you happy - as garbagey as the food is, we're even thinking about Chef Mickey's if we can get there - because of pictures with all the guys.
I wouldn't put emphasis on a big, expensive meal because you're really going to be sad if you are too tired to make it or you go and can't/don't eat anything to make it worth your while.