Can anyone report their observations?
I'd much rather carry on using Chrome but if it saves batter, I can switch to Safari...
Safari is saving a lot of battery for me and I'm only using Chrome now for things I can't do with Safari (i.e., Chromecast, make Google Voice calls from gmail).
I'm possibly seeing as much as 40-50% more battery on Safari, if the Air's time remaining figures are to be believed.
The only two downsides are I've already noticed problems with Windows iCloud 3.0 bookmark sync between Safari and my Chrome Windows browser. I saw duplicates this morning in Safari. Hopefully this will get cleared up as this will be a major annoyance and may lead me to have to rethink the Safari/Chrome combo.
Also, why won't safari let you not enter text for bookmarks? I love having just the favicon in Chrome, no text. On Safari that leaves me with an obnoxious 'NO_TITLE' next to every favicon.