You know what? On this I would have to say no. And here is why: Dream Theater was something about them, like a nuance, that no other band in my opinion has. (except for Rush and maybe Pink Floyd or Neal Morse). Like if I go and listen to another Prog Metal band or really just any band that is considered progressive, (by mainstream or otherwise) something key to me is missing. Like even with my least favorite albums done by them (Self Titled, The Astonishing) I can still fall in love with the little, seemingly unimportant bits. For example The Walking Shadow to me is an amazing piece of music in almost every way.
But they lost a bit of that nuance once Portnoy left, and Mangini just doesn't really fit. Though I would say they are still a mature band that is slowing trying to get back what they lost when Portnoy left.
Any of you guys know what I am saying?