It's very tough for me. I like them both as heels. I'm going to say JBL. JBL had was the best heel on smackdown in 2005. He also put over John Cena and made Cena what he is today. JBL has had some great matches with some of the greats including The Undertaker, John Cena, Shawn Michaels, and Batista. He was also part of one of my favourite tag teams of all time with Farooq, APA.