Neither of those cities have the iconic entrance to them. In fact, ask somebody that doesn't know Newcastle, Leeds or Manchester to name a famous landmark of each and I'll bet my bollocks they'll name one from the town.
Agreed. Leeds has no real focal point or anything that makes it really stand out aside from The Royal Armories and the museum. Manchester's canny, but everything's really spread out. Newcastle and Liverpool both have that compact feel to them that I really like, Edinburgh's decent, London's what you make of it, and Brighton and York are great. More on cities next week.
I liked Glasgow from the brief time I spent there the other month.