Greatest landslide

[dazzleman]

Harding won because of widespread distaste for Wilson.

Wilson wasn't running.

True, but the distaste toward Wilson spilled over to the Democratic Party.  Harding promised a return to "normalcy" while Cox was forced to at least partially defend Wilson, so the distaste toward Wilson helped Harding.

[dazzleman]

Of the four I listed Johnson did best in the popular vote but worst in the college. FDR did second best in the popular vote and best in the college. Nixon is tied third. Reagan did worst in the popular vote but second best in the college. Thus, I would conclude FDR to be the winner.

So would someone explain why so many of you are voting for Reagan? (Note, all these figures are percentage wise.)

It depends on the criteria.  Reagan came closest to winning all 50 states, and that's the only real reason to vote for him.