What is your preferred responsive framework?

[jducoeur]

A quick question for the web developers out there. I'm currently doing some consulting work (dayjob to bring in a proper income while Querki keep improving in the background), building a new website from scratch. As always, it needs to be modern and responsive. I'm used to using Bootstrap for this -- it's what I used for Querki -- but it's been a few years since I last took a serious look at the landscape.

So: any opinions between the available frameworks? I know Bootstrap pretty well, but I also hear about Foundation fairly often, and I'm finding another one called Skeleton that I know nothing about. Anybody have any pros/cons to express between these? Do you know any others that are particularly excellent? I'm looking less for just-the-facts (there are comparisons available online), and more for war stories, subjective opinions, and stuff that doesn't show up in the bullet lists...