I like to compare the ERB series to the Mega Man series. For each installment they get slightly better and I enjoy them thouroughly.
Leonidas vs Master Cheif is my favorite so far. Here are my opinions on the winners:
1: John Lennon, 2: Darth Vader, 3: Abraham Lincoln, 4: Sarah Palin, 5: Kim Jong-il, 6: Ludwig von Beethoven, 7: Steven Hawking, 8: Genghis Khan (duh), 9: Napoleon Dynamite, 10: Ben Franklin, 11: Dumbledore, 12: Dr. Seuss, 13: Mr. Rogers, 14: Columbus, 15: Tie, Rematch: Vader again, 16: Master Cheif, 17: Mario Bros.
Here are some of my ideas:
Link vs. Indiana Jones
Charles Darwin vs. The Pope
Shaggy and Scooby vs. The Ghostbusters
Edgar Allan Poe vs. Marilyn Manson
Kermit the Frog vs. Green Lantern
Ash Ketchum vs. Yami Yugi
Goku vs. Bruce Lee
That's not how the Force works.