Tired of ASP.NET, which of the following should I learn and why?
I have worked with several technologies... not touched ASP. NET. Heard about it from other people who are under its influence.
I have started working with Ruby on Rails and it is fun. Since you want to learn and develop web sites, you should go for Ruby on Rails. There are lot of things you can do with RoR on web. I like things that you can do with RMagick. (cropping images, thumbnails,slideshow etc)
Talk about multi-lingual sites... and there you have "gettext".
I vote for RoR.
Which of the following technology is easy to learn and fun for developing a website? If you could only pick one which would it be and why

Clojure/Compojure+Ring/Moustache+Ring
Groovy/Grails 
Python/Django 
Ruby/Rails
Turbogear
Cappuccino or Sproutcore
Javascript/jQuery