Payton's my main pick, but that's partially based on viewing him as being a little bit more QB friendly, and bringing Fangio with him. Harbaugh's the 1b to Payton's 1a. If I saw more of Harbaugh's staff, I could be easily swayed, since I don't want to give up much.
Outside of the top two, I wouldn't be miserable with Ryans, Kellen Moore, Steichen, or some other candidates.
VJ would be a huge mess, but I've never believed he really has a chance to be our next head coach. I could see him remaining as our defensive coordinator, and wouldn't love that, but I could see it.