Silva was the most admired for his KO finishes, but he wasn't a big draw and MW was pretty weak at that time. GSP was also a long time champ at WW. GSP's live ticket sales and PPV numbers were always top notch. He also had Under Armour and Gatorade endorsement deals which were unheard of for MMA stars previously. Liddell, Couture and Penn had their time in the sun. Stoner rebels liked the Diaz Bros., but I think that was merely a loud minority and not a huge fan base.