i'd buy sierra lx's over any of the revels at the lower levels.. the sierra 1 v2 as well (better value vs m106)....
The crazy thing is that I have a set of the S1-V2's, and to me, sound-wise (I actually love the way they look) they are a toss up vs the M16's, and at least for me it seems the M16's are more forgiving of placement and easier to integrate with a sub. I found the Sierra's a bit more finicky, and less forgiving to room and sub issues. M16's sound better right off the bat when setting up and are much easier to make sing. Sierra's are just as good, but a little more frustrating, at least so far.