Ask a front end developer what the best website development framework is and the answer is often, The one I know. Seriously, who has the time to delve into all the competing technologies to do a heads up comparison? Fortunately, in the WordPress universe the community is huge and (based on my 20+ years in technology) uniquely open to sharing information.
The website you're reading this on is built on an open source theme called Shoestrap 3. Shoestrap has the option to use either Bootstrap or Foundation as one of its underlying frameworks. I chose Bootstrap for this site because it was the only option available when I built the site plus I have a very high regard for the Bootstrap codebase. A lot of Bootstrap elements are discussed on this site, for example here and here.
But now Shoestrap supports Foundation (and Sass), so I've been curious about how they compare. Thanks to Adrian at DesignModo, we now have this helpful infographic to speed up the learning curve. If you want to dig deeper, be sure to review the comments to this infographic on designmodo.