I'm still using uBlock for Safari until Origin is ported.

Don't, use an ad blocker that uses the native content block API, rather than JavaScript.

Such as?

Personally, http://1blocker.com/mac/

Others, http://www.imore.com/here-are-ad-blocker-extensions-os-x-el-...

Why, though? I haven't found any content blockers to have done even as good a job as the unmaintained uBlock, let alone a better job.

I get about two more hours of battery life on my laptop. My laptop doesn't get warm anymore, and fans don't spin.

What the diff?

uBlock was maintained by one person, but they wanted to move on to other projects, so they handed the project to someone else. The other person horribly mismanaged the project, and contributed essentially nothing. The original developer decided to return with uBlock origin.

The other person also begged for donations while contributing nothing.

One is in development, the other is not.