I don't know why but I find the Safari Dev Tools to be more usable than the Chrome ones... but that might be a stylistic preference. I've been working with Xcode and iOS since Xcode 3.0, so maybe the UX is just something I've grown accustomed to.

For a long time they were identical, then Safari made some changes that made them MUCH worse. But in the last few years I found that fixed and I haven't gone reaching for chrome in quite a while.