Probably some have (partially) been said before, but:
-I find WDADU to be a better album (lyrically and musically) than SFAM, which is in the bottom 4 fav. albums for me.
-I find SFAM incredibly overrated as a concept album ("best concept album ever" claims make no sense to me)
-I don't like the Metal albums (BC&SL, TOT and SC) as much as the other albums
-About BC&SL, TCOT is in my top 3 DT songs, specially the Happy Holidays version
-TA is my 3rd favourite album by DT, after Awake and I&W
-OK, this is the most heavily loaded one: I don't think that Mike Portnoy is a good drummer. He's influential, and I respect that, and he added cool things to the songs (and some really bad things), but, he tends to overplay everything, and add the same fills whenever there's a chance; that's cool the first three times, then it becomes tiresome. Some people like that, and fine, but I just... don't.
-Petrucci and Portnoy aren't good producers. Petrucci makes everything loud and muddy, and Portnoy made everything LOUD and dry.