Red Monk, but with more up to date data & hey, mouseovers.
Then, in no particular order:
The Oloh index can be tweaked for a whole bunch of different languages. TIOBE's index is somewhat interactive now too.
My love/hate (well, dissatisfaction more than hate) relationship with Objective C and Ruby looks to continue into 2014, I can't find anything all that much better in the first tier of languages on any of these lists. There are worse fates.
Happy New Year!