I've been a Yes fan since the early 70's, and their "classic" period is my favorite, so I guess this applies to me.
I can understand all the people who say that Yes and Dream Theater sound nothing alike, which is true, but to me the similarities between the two bands has always been that of "attitude" and their general approach to creating music. Even if the song is attributed to a single person or just a few of them, it's pretty obvious that all members have made contributions to the arrangement and performance. The writer may have specific ideas about what they'd like to hear during certain sections, but obviously what you end up hearing on the album is performed by five guys working together, and the result is greater than the sum of the parts. There is also a great deal of musical exploration and virtuosity ("wanking" to the cynics) in each band.
This doesn't seem to have anything to do with the fact that I prefer Images and Words to A Dramatic Turn of Events. I've had IAW since '94 and loved it from the first listen. I'm still trying to get into ADTOE. Everything sounds great, but at the same time, nothing really grabs me; nothing really, really stands out. The one exception: that horrible croaking sound which always completely ruins what is otherwise the best song on the album. It blows me away that I get to listen to that incredible piece, then listen to a guy belch for 20 seconds. What is that even about? I'm pretty sure Yes would not include a guy croaking on one of their albums, not even during their classic period when they were stoned out of their minds.