Lieberman? No way. Like Ridge or Giuliani, a deal-breaker for me.
Same here. Romney is the bare minimum that I'd accept for a VP on the liberal-conservative scale, though of course I'm not going to root for his selection. He did reach out to conservatives on abortion and even when he was pro-abortion, he still supported restrictions for it. He would still have to go a little ways to totally convince me, but at this point he's much better than the alternative.
But McCain needs a solid pro-life VP pick here, not only would he lose conservatives but the squishy middle won't vote for him anyway.