I'll start off by telling you I have a bias toward Vandersteen speakers. I think they make the best speakers regardless of cost. Its only fair that I make you aware of this before I make any recommendations.
I put my 1.7's in the same room and system my Vandersteen Model 2 Signature 1, and compared them side by side. I can honestly say that I couldn't find one thing the Magnepans were able to do as well as the Vandersteen's. But that's just my opinion. Some people would disagree with me.
Here's a link to a free publication that covers Vandersteen speakers in great detail.
http://vandersteen.com/audio-perfectionist-journal
If you're new to Vandersteen, its a must read.