In reply to Andy Cloquet:
I bought one of the Revelations must be almost a decade ago now. Really nice rope, seemed alarmingly thin at the time come from 10.5s or 11s! And then I have (for complex reasons) 2 Jokers, one I bought, second I got for a review.
http://www.ukclimbing.com/gear/review.php?id=3765 I think of them as bit different, as the Revelation ISN'T triple rated as far as I know (the Mammut Serenity is). So the joker is more multipurpose as you can use it as a single or a half, while the revelation is at least designed solely as a skinny single. The Jokers are good though - mine have last long and had better dry treatment than Mammut, noticeable using them for ice climbing, come spring.