I agree with Ayreon Guardian X. Dream Theaters Six Degrees of Inner Turbulence is a great album, and while it might not be on par with Symphony X, that was probably because they were taking their music in a different direction. You have to understand, there is a fundamental difference in the styles between Symphony X and Dream Theater. While Symphony X is a little bit better as a band, Dream Theater's songs preach morales. For instance, The Great Debate from Six Degrees of Inner Turbulence, Disc One. If you listen to it, this song is saying that we should go for Stem Cell Research, and not be afraid of the consequences. Also, Dream Theater is much more Rock than Metal. I didn't really consider them a prog band until they made Train of Thought. That doesn't make them any less of a band. They are just much more mellow than Symphony X, which is a nice change sometimes.
To get back to the main point, you can't say that Dream Theater is any less of a band than Symphony X. In my mind, they are totally equal. What little Dream Theater lacks in musical quality, they make up for with the thoughtfulness of their songs.
P.S
If Jordan Rudess was a Jedi, and John Myung was a Ninja, who would win? This has been an argument between me and my friend for a while. I think John would win, but he thinks Jordan. Also, my friend thinks that John Petrucci is an amorphous blob who's guitar is his mouth, and the sound coming from him is him singing. He also thinks that James LeBrie is the spirit of all of the trees in North America, because he is Canadian. If you don't agree, please catagorize the other two. We also need something for Mike Portnoy. Thanks.