Size 12 is definetly good, but my prefered font is Verdana. The tests are interesting, but maybe it's all about tastes and what people are used too. I just turned ClearType on, and I don't like it much.

The easiest font to read is "Verdana". This is the font which is being used in this forum...The advantage with this font is that the characters are very clear and there is less chance of mis-interpretation of the letters..

I have several favorites, but readability has a lot to do with the medium. On screen readability is not the same as printed by any means. For printed media in large blocks of text, I suggest Baskerville or Garamond. Large bodies of text should be in a serif font.

I would rank the top 10 fonts for printed text (large bodies of text) this way (favorite to least favorite).
1. Garamond
2. Baskerville (or New Baskerville)
3. Book Antiqua
4. Georgia
5. Goudy Old Style
6. Acanthus
7. Caslon
8. Atlantix
9. Bauer Bodni
10. Century Schoolbook

For titles or fancy text I would say go with:
1. Bernhard Modern
2. DeVinne
3. Tiffany

For a sans serif you can't go wrong with Arial, but Swiss is also really nice.

In a pinch, for a serif font, Dutch is also good. I tend to avoid CG Times, Times and Times New Roman if I can, because it is just WAY over used (my opinion), plus I do not find it that easy to read. I have much less eye fatigue reading Garamond or Baskerville.

I prefer Courier New because not only is it a serif font, but it is mono spaced. I like to give 'i's as much space as 'w's and 'q's.

For on screen reading I suggest Dutch, Goudy Old Style or Georgia for your serif fonts. Arial, Helvetica or Swiss for your sans serif fonts

Personally i prefer the DejaVu Fonts.
I think that is looks just right for reading.:)

Easy fonts to read?
 

My own eyesite is diminishing, and after several trials with different fonts, I found that Comic Sans/12 point seems to allow me more time on my "beast" without undue eyestrain.

All the best,
Mel

That's under restricted access- is there quote from the paper or something similar that open access.

Here you go the url has been fixed
http://www.ischool.utexas.edu/~ct/