That being said, I do like the way Safari "feels" a lot more than Chrome. I think Chrome is actually quite ugly, and bad from a UI perspective. For example, Safari's overflow tab menu is a much nicer solution than Chrome's insistence on shrinking tabs ever smaller until you can't tell them apart at all.
Additionally Chrome is missing a killer feature I use all the time: zoom, and more specifically, double tap to zoom. I find it hard to read a lot of text on websites, and double tap, centered, zoom, is amazing. Its too bad everything else feels like its gotten way worse in the last 5 or so years.
I also think Safari has a much better solution for handling bookmarking when you have multiple tabs. Solve these two issues and I'd switch to Chrome in a second.
I digress… :)
Stacked Tabs Windows
Tabs never shrink, instead they stack on top of each other when there is not enough space.
Sorry, this experiment is not available on your platform.
Double click to zoom seems like something that shouldn't be too hard to do in an extension.
Another example, I'm watching an embedded YouTube video which thus annoyingly doesn't allow fullscreen, so I double tap it, and it fills the browser window, and it seems to be smart enough to render at correct resolution at that scale (since it still allows you to choose a higher resolution even though it won't full screen).
To do similar feats with Chrome I have to manually jigger things around.
Chrome doesn't have the same incentives to get that particular machine working well, especially since the next revision of the Retina Macbook probably won't even need special handling since it will surely have a more powerful GPU. They can just wait it out, similar to what happened with the iPad 3 vs iPad 4, where people had to optimize for the iPad 3 and then those optimizations were unneeded on the iPad 4.
Actually, they "merely" leverage their platform by using CoreAnimation, making it GPU accelerated (and enabling pinch-to-zoom), while Chrome scrolling hits the CPU really hard.
Chrome is even starting to drop native dialog boxes