Syd Barrett stuff was pretty poncey but some of the sonics were cool.
Saucerful of Secrets etc is total mindfuck, love it.
The Wall, Dark Side, etc, they have cool songs but they're...ok. I've never seen the appeal of Dark Side, i just think its decent.
Final Cut is cool.
Post-Rogers Pink Floyd is all shit, bar the P.U.L.S.E show. Sorrow goes from being a shit dirge on MLOR to an awesome live track.