I too think Berlin is pretty dull. Lots of history, but the nightlife tends to attract the terminally mid-level hip and it takes months to travel around it.
I did live in Hamburg though, which is great and a historic rival, so probably due to that.
Paris is a shithole.
Had to spend a few hours waiting for a minibus home from a week at cadets camp in Peterborough as a teenager and my God it's the least interesting place I've ever been, it's dismal, such that I want Peterborough United to lose.
Basel isn't great, certainly compared to the rest of Switzerland. Bit of a concrete jungle.