Looking at all of those bikes, the all look pretty close to equivalent, and the discount you're getting from your employer means a great deal for any!

If you're narrowed in on Redline, I don't see significant differences between them, I would focus my research on the forks. If what you read about the XCR 32 fork sounds better to you, then I would go for the more expensive bike, otherwise just save the $130.

What kind of place in San Diego is giving you a bike-buying benefit like this? I wish my employer had some kind incentive that would give me $$ for bike commuting (which I'm doing anyways)

What is your commuting route like?