I loved Gdansk, we flew home from there. Only stayed there for one night.I am in the shipyard in Gdansk. I am very taken with the place and would definitely recommend it for a weekend break, the centre is absolutely beautiful. And so cheap.
I went to Poznan some years ago, I remember it being quite modern, and certainly not as historically interesting as Gdansk.
Would go back.
I'd go back to Krakow too. Warsaw I wouldn't.