Thanks for all your opinions guys. I've just booked a trip to Rome. Seems as if most people are saying that is the better choice. I'm going this time next month for 3 days which I doubt will be long enough to see all the sights! I can't wait to go now
So as for things to do, any more ideas? I'll definitely check out all the sights including the Colosseum, Trevi Fountain, Vatican etc and the open top bus tour sounds a great idea! Won't be there long so need to cram as much in as possible