I've been pro Cena since 2005, so I certainly haven't jumped on no fucking bandwagon. . .
I say it's more the mongs that are still on the bullshit Anti-Cena bandwagon. Seriously in the past 6 years since that crap started Cena has proven himself time and time again. . .
---His workrate, not just in terms of the matches either. He does all sorts of promotional stuff for the company, not least doing film shoots for them and very rarely taking time off. Even when he's been injured, he's come back in damn near record time. He is quite possibly the hardest working man in the entire universe when you consider WWE's travel schedule and the limited amount of spare time he probably has. By all accounts he's an absolute gent as well, always representing the company brilliantly. I have the absolute utmost respect for him for this.
---The big fight atmosphere around his matches. Brock had it in UFC, Taz had it in ECW, Hogan, Dwayne & Austin had it in their prime and Cena has kept up that aura around his matches for at least 6 years now since he won his first WWE title. When those trumpets hit and you hear that unmistakable "YABBADABBADOO" you just know that the place is going to go fucking WILD, each and every time, in every single arena. Yes, you can maybe question some of the finishes, you can maybe question some of the quality of the respective matches and you can call some of his moves shit. But there is literally not a quiet seat in the house when he's in the ring. Also the way Cena is able to use ANY crowd reaction and use it to the best of his ability. Whether it be hostile fans at the ECW PPV or crowds loving him, he never ceases to be able to take it on the chin and play up to the reaction. You're either pro-Cena or anti-Cena, there's never an in-between. I love watching his matches especially the big PPV main events where he is a primary focus.
---He ALWAYS delivers in big matches. Years ago, Jimmy Cornette said he'd be the next Ric Flair. Now in terms of Flair's overall selling & ability, which could make anyone look good, he is obviously not up on that level, but when it comes to his ability to deliver on any big show, he most definitely is. Cena knows his match psychology, he knows when to bring people up and down, when to shine and when to die. He does the emotional roller-coaster so well, his psychology is better than pretty much ANYONE in wrestling right now, and he is able to work a WWE style match better than nearly anyone. You can probably count on one hand the number of times in the last 5 years when Cena didn't deliver a quality match on PPV. Of course, he's been carried every night though
---Even the most ardent of Cena haters secretly love him, when he came in at #30 in the Rumble a few years back he made everyone in MSG mark like fucking children, magnificent. Even in front of the most hostile crowds he'll pull off the Five Knuckle Shuffle making the whole crowd go "BOOOOOOYOUCANTSEEMEEEBOOOO". Making your haters sing along with your catchphrases is a true sign of class. How can you really hate a guy who takes the hate so well?, Also, those pictures of him posing with anti-Cena mutants at WM each year will always be tremendous!.
---His mic work. He's often undermined by really shite scripting but when it clicks, he's easily one of the best promo guys around (his farewell speach the night after Survivors '10, the Edge / H3 / Shawn feuds, the rap last year, last night). When he's serious and he looks down the camera, he's the best money promo in the world. If they had any idea how to write it, he could talk people into a building just like Dusty Rhodes or Hulk Hogan.
---His winningness to put people over. Who has ever heard a story of Cena refusing to feud with this person or put that person over?
---He portrays a proper babyface. He sells like he's dead and makes miraculous comebacks. He defies the odds. He doesn't quit. He's a proper role model. He's everything a babyface should be, though he could be cooler. If your little kid said "I want to be like John Cena" then you'd be pleased. He makes kids happy the way Hulk Hogan, Sting, Bret Hart and Warrior made our generation happy when we were eight.
---The fact they HAVEN'T needlessly turned him heel for the sake of a quick pop from the 18-35s. It's something they can only do once. It will kill the kids' faith in him, and that faith is something rare and special in this day and age. They'll do the turn when the time is right, and it will be awesome. But that will be when there's somebody to take his place.
The dude is just amazing, and will be around for many more years yet and I honestly can't wait for his HoF induction sometime in the next 2-3 years, just to piss off all the mongs even more.