Uh, what? Alberto Del Rio was never near Rey Mysterio's level. Mysterio might have been badly booked for the latter half of his career, particularly his main event years, but prior to that he was a SmackDown staple for many years and a top 3 babyface on the brand.
Mysterio worked and feuded with names like Kurt Angle, Triple H, Chris Benoit, Edge, Chris Jericho, Shawn Michaels, the Undertaker, CM Punk, John Cena, Batista, Randy Orton, Eddie Guerrero, Kane, the Big Show, and countless others for over a decade. He held tag titles with multiple hall of famers, held the World title multiple times, won a championship match at a Wrestlemania, won and had one of the most impressive Royal Rumble performances in history of the event and that's just his WWE career.
Alberto Del Rio was hot shotted to the top in Mysterio's declining years because they needed a Hispanic star. He beat John Cena for the title for a forgetable, meaningless and transitional title reign and spent years in programs with guys like Sheamus, Jack Swagger, Big Show, and lost to Edge at Wrestlemania, and then Christian. He floated for years, transitioning between heel and face because excelled at neither, and never moved merchandise either way like Guerrero or Mysterio, two hispanic superstars before him.
In the grand scheme of things, Del Rio had a decent career, but a Mysterio-like career he did not.
