D
Punk's ahead of Sid in World Titles and days as World Champion, and Punk also dominates Sid when it comes to secondary/tag titles.
Sid main-evented 2 WMs to Punk's 0 though, which is really the only major point in his favor.
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Thank you, Eddie Guerrero.
http://www.wwe.com/f/styles/photo_large/public/photo/image/2012/04/33_Moscow_04112012jg_02128.jpg