I just use both IE's. One lets me use addons like Lastpass, one doesn't. I've never used Chrome, and have no interest in it. IE works great for me.
As a side note, I was using a MBPro. I find the sp3, unlike the MB, hooks to the internet consistently, at full speed, and connects virtually instantly. My MB was only getting half the connection speed about half the time and I would usually have to turn off/on the wifi in order for it to connect.... even after 3 updates. When it did connect, it took several seconds of 'searching' to hook up.
Is Safari better than IE? Meh. But there's a world of difference in the machines (from my experience).