I agree, definitely they wouldn't be conservative in the Scalia sense, however they will be MUCH MORE conservative than any justice appointed by either Hillary or Obama. All other nonsence aside, one of these three will be the next president, so I like my chances with a SCOTUS pick or two from McCain, instead of Hillary appointing the 'bent one'
If Hillary picked someone like Bill, the Republican Senators, except probably McCain, would fight to stop it. If McCain picked a liberal, highly likely, some Republican Senators, along with all the Democrats, would support it. McCain is a greater danger to a future conservative U.S. than Hillary.