When my favorite driver Ernie Irvan switched from my beloved Chevrolet to Ford, I was pissed. I still cheered for Ernie but he was no longer my favorite when he left Chevy. Granted I was only 7 years old, but I digress.
Jeff Gordon is my all time favorite driver, and I would still be upset if he left Chevy (luckily that will never happen). But even if he did, there's no way in hell he would stop being my favorite.
That being said, I do come from an old school, brand loyal family, so I totally understand where you're coming from. Especially since its Carl Edwards who we're talking about, who has always struck me as the biggest phony in racing.