Read and compare:

Maven
In 2004, Maven experienced the biggest push in his career, even gaining a victory over then-Evolution member Batista. Maven then took part in a Survivor Series Elimination Match at Survivor Series 2004, teaming with Randy Orton, Chris Benoit, and Chris Jericho to face Triple H, Batista, Gene Snitsky, and Edge for the power to control Raw for one month. Maven was the first to control Raw, booking himself in a World Heavyweight Championship match against Triple H, who tried to get out of it by offering Maven a place in Evolution. He declined, but despite interference from Jericho, Benoit, and Orton, Triple H retained the title due to interference from Snitsky and Ric Flair. Maven turned into a villain two weeks later by turning on Eugene, assaulting him as revenge for his elimination in a Battle Royal on Raw. During this time, he entered an unofficial alliance with Simon Dean, serving as a successful user of the Dean character’s "Simon System" line of nutritional products. The team was split when Dean was traded to SmackDown!, and Maven was subsequently released by WWE on July 5, 2005. WWE cited decreased revenue and a lack of enthusiasm with respect to Maven’s in-ring ability as the cause of his release.

CM Punk
At the end of the pay-per-view Extreme Rules, Punk cashed in the Money in the Bank briefcase and defeated Jeff Hardy, whom had won the championship only one minute earlier from Edge, to win the World Heavyweight Championship for a second time. On the August 28 edition of Friday Night SmackDown, Punk concluded his program with Hardy and achieved his booked goal of excising him from the WWE, defeating Hardy in a steel cage match wherein the loser agreed to leave the company. At Breaking Point Punk defeated The Undertaker in a submission match to retain the World Heavyweight Championship. Undertaker originally won the match with his Hell’s Gate submission hold. SmackDown General Manager Theodore Long re-started the match after stating that the ban that former General Manager Vickie Guerrero had placed on the move was still in effect. Punk would win the match with his Anaconda vise when referee Scott Armstrong called for the bell despite Undertaker never submitting (reminiscent to the Montreal Screwjob, which took place in the same venue in 1997). The feud between the two continued and at the Hell in a Cell PPV, Punk lost the World Heavyweight Championship to The Undertaker in a Hell in a Cell match. On the November 6 edition of SmackDown, Punk was defeated by R-Truth due to a fast count from referee Scott Armstrong, leading to a feud between the two. On November 13, Punk defeated R-Truth due to an illegal pin. On the November 27 edition of SmackDown, Punk introduced Luke Gallows (formerly known as Festus) as his new follower.

You can’t compare Maven to CM Punk. Maven was a Tough Enough winner in the
WWE thats all he had to his credit and they paired him up with another jobber in
Simon Dean who was in my opinion a great wrestler in the old ECW days when he
wrestled under the name Nova, Super Nova and Hollywood Nova in ECW and when
they brought him to the WWE he was just a comedy act I couldnt believe that he
had been reduced to that. On the other hand, CM Punk is well rounded wrestler he
has been wrestling for a long time and has more experience in the wrestling industry
CM Punk was in Ring of Honor and he was the Heavyweight Champion for that ROH
organization. And he has wrestled in TNA Wrestling. When they signed CM Punk to
WWE he went thru the OVW training session and he worked his way up the ranks
by defeating the other wrestlers in the ECW roster. I saw him defeat The Hardcore
Icon Justin Incredible a few times on ECW. CM Punk was ECW World Heavyweight
Champion when he defeated John Morrison and he was the WWE World Heavyweight
Champion on RAW and Smackdown. I liked CM Punk’s gimmick being a straight edge
superstar and he won his matches and didn’t bother anybody now he’s taking this too
far with this straight edge gimmick who’s he to tell people how to live their lives if people
want to go out to bars and have a few beers thats fine just dont drink and drive and have
a designated driver to help you out. I have lost a lot of respect for CM Punk. CM punk he
cant beat The Undertaker theres no way he can do that the only one who can beat the
undertaker is Batista just like John Cena cant beat Batista Batista already beat John
Cena. I think that either Batista or CM Punk will win this years 2010 Royal Rumble they
were saying that Edge might return and be the number 30 surprise entry its too soon for
a return Edge’s injury takes at least 10 months to heal he will be back at Wrestlemania 26.