Arial vs Helvetica

With all my posts about Arial and Helvetica, I finally got around to updating my website to use Helvetica. I have nothing against Arial in particular but if you can use the original, why not?

I am aware that the logo may appear blurry on devices with high DPI displays but I don't have a solution yet.

UPDATE (20120710): See this Flowchart: how to retinafy your website via daringfireball.

Differences between Arial and Helvetica

I posted a comparison a while back but got them mixed up. Here's a comparison of a couple of characteristic letters: One more:

Updated 200810230005

Arial vs. Helvetica

I'm on my new iMac 17" and thought the following might be interesting to analyze:

The goal for me is to be able to spot the difference between the classic Helvetica font from the Microsoft version, Arial.