tinyE: I love The Wall but I'm a little torn on how much it really represents the band.
There was A LOT of dysfunction and Wright, Mason, and Gilmour all insist when they got to the studio, Roger already had 90% of the album written. Waters says this is total bullshit and 40 years later Gilmour still refuses to talk to him. I tend to side with the the three because the sound/style of The Wall doesn't remind me of the Floyd records before or after, when Roger had left. The only song that really sounds to me like a full on Pink Floyd song is "Comfortably Numb" which is interestingly enough, the only song on the album that all four admit to writing/working together on.

A lot of what made the "Pink Floyd sound" was nowhere to be found on The Wall, making me think the other three had very little to do with it.

A few years ago , shortly before Wright died, the four got together and played Comfortably Numb (I forget the benefit/occasion). At the end of the song, you can find this on YouTube, Waters reaches out to hug Gilmour, and Gilmour turns his back on him and walks off stage. XD