I don't think Chrome consumes more battery power than Safari. Where have you heard that?
Chrome consumes way more power than Safari, while not bringing any advantages. Anyway...
OP:
Chrome has a feature where it starts to load pages as you type. I'm not sure if Safari has a similar feature, but on my machine both load a page equally fast, just like firefox.
I find that Safari is faster on everything for my usage: It deals with html video better (youtube video sometimes stutters on chrome, not on safari), trackpad gestures are way smoother, the build-in dictionary (3 tap on a word) works better, the 3 tap on a link to preview the page is a most have, looks better, the trackpad gestures for switching between tabs (web mission control) is just fantastic for laptops and, of course, the battery life.
Chrome has its own ecosystem, and despite being an Android user, I hate it and find it useless. Those notifications? OS X already does a much better job at it. What a mess. That bell icon? First thing to remove.
One advantage that Chrome has is that some extensions, like adblock plus, use less resources there and don't slow the browser down. Safari is still faster with adblock than Chrome, but if you open many tabs you feel the hit. Also, adblock doesn't work in flash, in safari. Anyway, I don't like nor do I use flash, so the fact that Chrome has it sandboxed and built in is why I have it installed (for when I need it) and also why I try not to use it.
About slower loading times: There are some threads about it. For some reason, some users suffer from it. One thing that worked for most was going to network preferences - wifi - advanced - tcp/ip - ipv6 configuration - local only.
See if it helps you.