Zacky, whom I'd not heard of (other than his family's now defunct chicken business), is making good noises. Steve Hilton and Chad Bianco are as well. There are 3 solid R candidates. The Dem candidates ... I have trouble taking any of them very seriously, but I'm obviously partisanly prejudiced. Trying to set that aside, I do not see any of the Dem candidates as especially strong, at present anyway.
Zacky has experience, direct and through his family, with agriculture-related business. Bianco is the Sheriff of Riverside County. Hilton's background is in UK and US politics. Because of their business and law enforcement experience, I would tend to favor Zacky or Bianco. In their fields, both have experience with the issues gooberment creates for normal people..