Someone finally did something like this. Personally I don't hate Arial, but what I do hate is Helvetica. Not because it's an ugly font but more because Firefox doesn't display it correctly, it shows all Helvetica text as gobbledygook. Now I'll never have to put up with that stupidity again.
And sans-serif I'm noticing, is a very nice font. Thank you to the creator for making my time on the internet SOOOOOO much easier.