I kind of have an odd relationship with WDADU. I consider it my least favorite DT album, but whenever I actually listen to it, I love it to pieces. I think part of it is just that for me, James Labrie (love him or hate him) is a very important part of Dream Theater, and therefore WDADU doesn't feel like Dream Theater to me at all. It's not that I find the album bad, because I don't. I just consider it a fun album made by a bunch of kids before they found their correct vocalist and became the band they were meant to be. No matter how hard I try, I have a tough time considering it to be a proper DT album.
So I have this issue where when I'm ranking DT albums, WDADU pretty much slips my mind entirely. But when I do listen to it, I have a hard time figuring out why I don't listen to it more.
That being said, I think I actually prefer WDADU to WDADRU. Maybe if they did a proper remake, a polished studio album with JLB on vocals, it would be different. But just having heard the live version... I don't know. Don't get me wrong, I consider JLB to be the superior vocalist, but CD's vocals suit most of the songs better, in my opinion. Especially on Afterlife. I honestly find it difficult to listen to the WDADRU version of Afterlife.