For the rest, I work on Gecko (the rendering engine in Firefox). We get a fair number of bug reports about sites that work in Chrome but break in Firefox because Firefox is following the spec and Chrome is not.
Chrome is definitely closer to the standards than IE was, but that's at least in part because of all the changes standards have been making recently to match Chrome when Chrome makes it clear that they have no plans to implement what the standard says. When IE tried that sort of thing, people just wrote standards that didn't match implementation reality. That had its own drawbacks in terms of leading to standards so divorced from reality they were useless (see XHTML 2.0, for example)....
