The only reason I can see Maddux getting under 90% of votes would be the fucking idiots who steadfastly refuse to vote for first timers on the ballot, there are precious few players who genuinely have an unquestionable list of credentials worthy of enshrinement in Cooperstown but Maddux is one of those players that's for sure. I wouldn't go so far as to say it should be unanimous but it should be at the very least low 90's percent of voters in Maddux's case - sorry to burst Kabookiejoez's bubble, if there's a player who SHOULD get in the high 90's it's Mariano Rivera.
Doc is definately in the discussion, were it not for his mentality he'd have been on a contender much earlier & had a ring by now - but you can't ignore the fact that for a period of maybe 6 years he was the pitcher you looked at and thought "oh shit, we gotta face that guy, jeez...". He was stung by pitching in a tough division & regularly pitching against the aces of ballclubs, which if it's the Twins or Mariners is cool, but it was the Yankees & Sox, had he been out the AL East I think he'd also have had a better record.