Man, just apply where you feel you'll have most fun and where you feel you'll be able to spend some years of your life. The truth is, most people here don't know jack about these different universities, and even less about how good they are for your preferred courses. Okay, fine...UE, MET might not be Imperial, LSE, Oxbridge...or whatever, but...I dont really think thats what you were wondering. London is a great city, and you will have fun wherever you go. And university-wise, as long as you find the course and place you wanna be at....go for it! Good luck mate.
PS. City is, acoording to what I've heard, I pretty good Uni, and I'm quite sure it's a good one for Journalism.