Davis is more conservative than Riordan. Simon and Jones are the best choices, but Jones has no money to capaign. If it is not Simon, I think Davis would be better than Riordan for conservatives. At least Davis is afraid to take on conservatives, while Riordan seems to enjoy it -- particularly on abortion and 2nd Amendment issues, not to mention getting rid of Prop 13.
Wow, the more I think about it, the more I would prefer Davis to Riordan.