Recomendations for a semantic, responsive HTML5 grid in 2013?

Whats good Sitepointers?
I’m looking for a grid for a large, content heavy site. The site will use asp.net and c#, so I’m avoiding frameworks/grid systems that use SASS. (LESS is cool tho!)

Personal preference - I dislike class names like “grid_3” as it reminds me of inline styles from the 90’s / early 2000’s!

Here are a few I’ve been taking a look at:

http://goldilocksapproach.com/
http://typecast.com/
http://www.yaml.de/

I know people have differing opinions about CSS grids/frameworks, but hopefully I can get some constructive input!

Thanks! :slight_smile: