My primary concern with Lewis is that the Liberals (and by extension, the media) will just focus on her stance on abortion. If you look at the interviews she's done, that's all the hosts want to talk about, and it'll take up all the oxygen in the room. That said, if it's her or another old white guy, the odds of her getting the 905 and, dare I even hope, one or two in the 416 might be better.
As for MacKay, yes he's a red Tory, but if he sees his party base being expanded by the thousands by pissed off firearms enthusiasts, I would expect that he would play the consummate politician and appease that base. He's not going to run on firearms reform, but I would trust that he'd repeal the OiC and he'd repeal C-71 in an omnibus budget bill, maybe make some changes to classifications, but no more than that. He would eat into a chunk of the Liberal seat count in Atlantic Canada. He's fluently bilingual, so that helps in QC. He would also eat Trudeau for lunch and dinner in a debate in any language.
Sloan has about as good a chance of winning the leadership race or a general election as the Leafs have of winning the Cup this year or next.
I like O'Toole. He's known in Ontario, he's a 905 MP, retired military, tells it like it is, etc.. But he's just another old white guy. As much as I think he'd be the best PM of the group of them, I don't think he could win a general.
I've been a party member for years and this is the first time I've had to sit here seriously questioning who I vote for.