I could personally not remove anything from I&W, every song feels exactly right in place and songs like UAGM have some of my favorite playing from Petrucci, and of course James sounds like an angel of RAAAWWWWK.
And then there's the opening of TTT, which my friend and I would try to emulate while driving around town at like 2 am.
"COME ON WAIT A MINUTE, JUST LET ME CATCH MY BREATH"
Yeah, the album just has a lot of personal connection to it, I couldn't imagine taking anything out or adding anything in.
Now if you want something Controversial that you haven't heard from me before, while I acknowledge SDoIT as being one of their best, I just can't get myself to listen to it very often, even more so than Scenes, it's just a very tough album for me to get through, I just start thinking of other DT albums when listening to it.