DJ Epoch says it like "E-Potch", I say it like "E-Pock", "eh-puck" is how you say "epic". Epoch is open for interpretation in my opinion.
At least this isn't as dumb of an argument as my best friend and I had once about the pronunciation of Chocobo. He was convinced it was cho-CO-bo, and I was like "uh, no; it's CHO-co-bo". Then when FFX came out and proved me right, he turned the tables and said it had been the opposite the whole time. Silly kid.
Then again, I think Hermione had everyone confused. I was convinced it was hermy-own, lol. My uncle still defends it jokingly, outright against the film. It's funny.