No typographer nor designer here either, but _subjectively_ speaking:

* This test quickly 'clued me in' that a logo should give a "commanding", "authoritative", "brooks no argument" look. Helvetica, yes; Ariel, no: Ariel made some logos look downright self-satirical.

* An email client I use has Ariel as its default font. In that (two-way communication) context, where accidental antagonisms can arise, Ariel seems to "look less antagonistic"

* So this test speaks to me about appropriate fonts for two different contexts, and personal point-of-view.

* Got 20/20, but might not on a 2nd run. I'm only human.