I like O'Toole - he's solid, smart and very likeable- and his French is decent and improving.  He's also one of the most likely candidates to bring some integrity back to the Conservative Party, which is sorely needed and was badly squandered.   Leitch and O'Leary are the most likely to keep disaffected Conservatives away, more of what Harper became in the end and what the country rejected.  O'Toole's leadership campaign materials already show the ability to take on Trudeau.  Bernier has surprised everyone, I think, but a little too ideological for my taste.  My money..and vote..is on O'Toole.