It's strange hearing reports of "scroll lag" in the other comments. It's possible I'm just lucky. Or there's a misconfiguration somewhere in their setup that Chrome somehow avoids.
It's true that I still mostly use Chrome for webdev - I've become more used to it's (excellent) dev tools, even though Firefox and Firebug started that whole trend. It feels very right to separate my "user browser" from my "dev browser" in this way!
(Personally I'm with you in preferring Firefox dev tools - although I'm not someone who needs to use them more than a few times a month - not because I have any specific issues with Chrome dev tools, but because I prefer Firefox, and Mozilla, generally, and I've not found anything that FF can't do.)