I have the RSD's and they're amazing components, especially for the cost. You can save a few bucks with them and put it toward a better amp. They have very clear highs and excellent midbass with pretty good extention into the lower frequencies. Of course they're better when paired with a sub, but they're great even without.
And as stated, they do handle power VERY well. I'm delivering 150wrms to each door in my tC and they handle it without a sweat //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
I haven't heard momo's, only db's, and I like the RSD's better.