I would like to see Noir in there also. I have been using Noir a lot in the last 4 or 5 months: good performance and nice to develop with. BTW, off topic but since there was a lot of HN discusion yesterday about DHH's article on Basecamp Next and using pjax: I just blogged about using pjax with Noir: http://blog.markwatson.com/2012/02/using-pjax-with-clojure-a... (with a link to a github repo I just created).
Noir has been really fun to work with. It's really fast, API is predictable and easy to learn. It seems to be inspired heavily by rails but without the constant dependence on "magic" to do simple things.
It's also nice to break away from the Active Record overhead and be able to find new optimal ways to model data with Redis/Mongo.
I'd still recommend rails to the newbie developer, but if you're experienced in developing web apps, I'd highly recommend Noir.