Most of us who love Goofy's on here (myself, Vala, Disneynerd420, Amy&Dan, Spacemermaid, etc.) and give it the rave reviews are the ones who go back there repeatedly, every trip. (I prefer the breakfast over dinner, but that is just my personal taste.) Goofy's Kitchen is really great (in fact, this last experience I had there in December was better than the last few previous ones I had there, and I've loved Goofy's for a looooong time) - huge variety of tasty food, lots of good things to choose from, about 8 characters roaming around. I don't think (though am not sure) that the Surf's Up with Mickey breakfast has the same variety of food, though they may have added some items since it is now all-buffet (no off-the-menu orders anymore). I am sure the food at Surf's Up is delicious, though. It appears that there are some unique items there.
BUT, that said, even though I always recommend Goofy's, I would say that if you really want a meal with Mickey (and who doesn't want one?

), then try the Surf's Up with Mickey meal at the PPH! Why not? Go for it! It's new, so there have not been many reviews from it yet. You can be one of the first! Sadly, no one has really posted much in the way of photos from it on our character meal photo thread yet, but I am hopeful that they will. I definitely want to try the Mickey meal the next time I go to DLR for a full weekend, but I am still going to eat at Goofy's too! We only did a one-day trip to DLR in December and it came down to me to decide - Goofy's or Mickey and Friends... I chose Goofy's, not just because it is my old reliable favorite, but because I knew that the wait at the Surf's Up meal would be crazy without a PS (and apparently it was, from what we heard).
Here is a link to some fantastic food pictures (in several posts) from Goofy's, courtesy of Disneynerd420 - scroll all the way down the page of his TR to see them:
http://www.disboards.com/showthread.php?t=2268157&page=23
And here is our character meal photo thread, in case you would like to try one of the other character meals:
http://www.disboards.com/showthread.php?t=2234435
Whatever you choose, make sure to come back and tell us all about it!!!