From what you've said it sounds like
you prefer the sound of the M60ti's, and your friends prefer the sound of the CSW's. Who are you buying them for?
Most towers (nearly all I've ever heard until you start getting into the $2000+ range) have very muddy sound in the upper-bass region. That deep mid-range/high-low range seems to be a real struggle for most tower speakers. In fact, before hearing the M60ti's, I was strongly in the "bookshelf speakers and a sub is better than towers" camp.
What you're hearing is likely in fact clean, un-distorted, tight bass, not
less bass. From your post above it sounds like you prefer that sound already, and given a few days more listening, you'll likely grow to really
dislike the loose sound of lesser speakers.
Ultimately it's your ears and your call though.
