I could go on for pages and pages as to why Snape is on the right side and why anyone who thinks otherwise is a moron who demonstrates a total lack of reading ability, but I'll spare you. Unless someone asks, and then I'll throw down.

I'm asking. ;)

(and I agree with you, it's painfully obvious Snape is not evil. The most obvious reason is that, well, JKR went to great lengths to make it look like he's evil.)