Well, if this helps, Bush Sr. was an Episcopalian (Anglican), Bush Jr. is a Methodist, and Ted Cruz is a Baptist. You can tell a little about each denomination by those guys, though they don't epitomize them.

Methodists are also pretty wide-ranging, going from raving loony leftist to about even with conservative Baptists, but they're about to formalize a split between those groups.

(However, Jimmy Carter was a Baptist, too. He's just one of the people who are turning the Southern Baptist Convention into another leftist mechanism.)