By Tzvi Machlin It’s been nearly a year since John Cena last appeared in a WWE ring. But this weekend fans have been debating where he ranks among some of the best wrestlers of the past 20 years. On Saturday, an article was published debating Cena is the best wrestler to come out of the famed Ohio Valley Wrestling class of 2002. That class included the debut a handful of WWE’s biggest stars: Cena, Brock Lesnar, Batista (Dave Bautista), Randy Orton and Shelton Benjamin. In the day since that article was published, fans have begun debating where Cena ranks in that prestigious class. Given that h…