EEE at Surrey or Bristol Watch
Rankings are not definitive, but they can be helpful, take a look at those. Have you been to both? If you particularly liked one over the other then maybe that should be your choice. Also I'd suggest having a look at the departmental websites, see if you find the areas of research at one more interesting than the other - although this is probably more relevant if you're planning to do a masters or beyond. I don't know if Bristol offers an industrial year, but that can be a big draw for some (Surrey does).