Seems like you made a choice, but thought I would chime in anyway. I have been running a Venture in the rear and Sendero in the front for my riding in SoCal, really like the setup. The Venture definitely has much more supportive and pronounced side knobs than the Byway.
Personally, running a less aggressive tire in the rear is more fun for me. I think a Venture in front and a Byway in back for lower rolling resistance and a little more excitement would be a ton of fun as well.
