This may not be relevant, but did you know that the Mr. Pibb font ("Blippo Black") was created by the Nazis? It was discovered in a German printing house after the allies bombed the place. There's something appropriate about that, since both Mr. Pibb and National Socialism are both nasty, and really hard to swallow:
http://www.mtblanco.com/NewsMrPibb.htm(I know what you're thinking: "Julian, only YOU would link to a Texas Creationist Fossil Museum about Mr. Pibb/Nazis.")
It's really, really interesting to note the contributions made by letterers to books. There is something very, very classy about the Superman logo. Here in Miami, there's a chain of Argentinian grill restaurants called "Zuperpollo!" whose symbol is a fat chicken in a Zorro outfit. The point is, the Superman letterheadmast is recognizable no matter what you do to it.
The only other letterhead that has that kind of recognizability is the blue "shield" for JUSTICE LEAGUE OF AMERICA, and it's strange that no other itineration of the JLA from SUPERFRIENDS to JUSTICE LEAGUE UNLIMITED has ever used it. Even though it said something else, when Fry and the rest of the guys jumped through it in that one FUTURAMA episode, you could tell what it was based on!
The BEST title masthead, however, has to be the one Jim Steranko designed in UNCANNY X-MEN #50, the famous X-MEN masthead that was used later on in the cartoon and in every single action figure. To be honest, I don't even remember what the original X-Masthead looked like; I shut my eyes...it doesn't appear.
By far the WORST letterhead has to be the FANTASTIC FOUR title. It's so sloppy and weird, but it has history and seniority so I guess there's no getting rid of it. Though I did love the "Top Gun" style FF masthead from the seventies with the members' heads in circles around it.
As far as letterers go, their contributions to comics should not be ignored. Take away the fascinating personality of Ben Oda, and something about DC's polished look in the seventies just seems "off." To be honest, at some psychological level, part of the reason the occasionally awkward Dick Dillin art on JLA felt "right" was because of how sharp and computer-precise the lettering was that it makes you "correct" things mentally.
And ABC would not be ABC without Todd Klein, the Man of a Million Fonts. I especially love the vaguely 1930s, World's Fair-esque typeface their logo is placed in. Appropriate he and Moore should work together; but I would have to say that comparing Klein to Moore is underestimating him.
Incidentally, is that pic of Uncle Morty the most current one they have? Wowza.