Dems or GOP: Who has a more "diverse" electorate?

[Rockefeller GOP]

Before you read any further, I do NOT mean diversity as in ethnicity or national origin; that title would clearly go to the Democrats, as Republicans are overwhelmingly White.  What I'm asking is which party has a wider range of "factions," and which party's factions are more (comically) different from each other?  For example, in the GOP, the business community must coexist with evangelical social conservatives while in the Democratic Party, environmentalists must coexist with unions.  I thought this would be kind of a fun topic of "odder marriages."