Frankly, I don't think that was a very balanced comparison. You gush over BD and then nitpick SCV. I only saw them once each, but I got a totally different vibe. First, let me say that I think they are both great corps that are performing difficult programs at a very high level. However, I find BD musically to be rather loud, aggressive, and about as nuanced as... well. something that isn't very nuanced. To me, their drill seemed static and their guard was not well-integrated (seemed to be doing their own show). But they do execute better than anyone else.
SCV on the other hand seemed to have a better "total show" design, with all elements - music, drill, guard - working toward the same effect most of the time. Their drill has more movement and more impact points than BD, or at least it seemed that way to me. SCV's execution in both music and marching was just perceptably not quite to the level of BD.
In terms of emotional connection, there was no comparison (for me). Scheherezade was simply magical. BD was just too cerebral. Also, their attitude really turns me off. I'm from Chicago so I have a certain idea of "blues". BD didn't really approximate that too well, but, hey, that's just me. I have a different description of BD's style of music, but it isn't real complementary, so I'll just keep it to myself.
I've been catching up on my summer reading, so if I had to compare BD and SCV to American authors, I'd say BD is like Hemingway - clear, succinct, well-structured, masculine, and letter perfect. SCV reminds me more of F. Scott Fitzgerald - a little more loosely structured, but also a more lyrical style, more romantic, and, ultimately, more satisfying. My own opinion, of course.