The way your dog acts would likely cause an older, just as dominant dog to "beat her into submission." It won't really be a beat down as much of the other dog just grabbing your dog and correcting her in the way that dog seems fit...
I would not allow your dog to bark at other dogs like that. Barking and noise has a way of riling up other dogs, and if that dog doesn't want to play, it will react in a way that neither you or your girl would like. When my dog gets a little bit rough with other dogs, I will physically make him submit if that's what he needs. Trust me...waving a treat in front of his face isn't going to stop him when he gets truly angry.
The advice you're getting from other people isn't terrible...as long as you get a dog that will teach your dog boundaries in a nice, safe way. Right now it sounds like your dog doesn't know what her boundaries are, she's bigger than all the other dogs she plays with, and so the other dogs won't teach them to her. It's actually quite nice when dogs teach each other and especially puppies what their limits are and how to properly initiate play.
CD RE TC HIC 7/10