George Lopez is way better and more ORIGINAL
Joe Rogan wrote a post on his website publicly accusing Mencia of being a plagiarist, alleging that Mencia stole jokes from a number of comedians. Notably on February 10, 2007 Rogan confronted Mencia on stage at the Comedy Store on Sunset and continued his allegations of plagiarism. Rogan posted a video of the altercation with audio and video clips from other comedians including George Lopez, Bobby Lee and Ari Shaffir among others. Rogan has also posted audio and video clips of Mencia's interviews and joke routines being compared on his blog.
George Lopez has accused Mencia of plagiarizing his material. In an interview on The Howard Stern Show, Lopez accused Mencia of plagiarizing 13 minutes of his material in Mencia's HBO special. He also claimed he had a physical altercation with Mencia over the alleged plagiarism. The one of the jokes that Lopez has publicly specified was stolen and used on Mencia's HBO special was a Taco Bell joke.
Mencia has also been accused of stealing a routine from Bill Cosby. In his special, No Strings Attached, Mencia performs a bit about a father who spends years training his son for a career as a football player, only to see the son say "I love you, Mom!" at his moment of televised victory. Cosby performed a very similar bit in his concert film Bill Cosby: Himself. Mencia told the Los Angeles Times that he had never seen the film but regretted the similarities between his and Cosby's jokes.