What's the best Chromebook?

Hey guys. So, I've been wanting to try a Chromebook for a while now. Then the Pixel came out, and I decided I had to find a cheap Chromebook to truly see if I can live entirely in a browser.

Firstly, I'm in Canada. They don't sell Chromebooks here, so I'm limited to what I can find on Kijiji.

Typically it's either a Samsung Series 3 or 5, with a few Acer C7's thrown in. Currently I'm leaning towards the Series 3.

Thoughts?