The main problem with this leadership challenge is that it's come 18 months too late. Should have happened straight after the General Election. As it is, right now, it's self-indulgent party manoeuvring that probably will end up being self-defeating too. Either Theresa May wins and everyone wonders what the point was except to destroy any authority she and the government have even more completely; or she loses and there must be a protracted leadership battle at exactly the time when decisions need to be made on Brexit *now*.
Neither outcome is palatable. It speaks to how pathetic the Tory Party is that they choose now to resolve issues that should have been sorted months, if not years, ago.
And as to the question of who replaces her: Leadsom has come out firmly in favour of the Deal on the table in the last few weeks, so she's no hope for you lot; Rees-Mogg won't stand, and if he did, he'd lose heavily -- and quite right too, the incompetent bungler could barely organise a small coup three weeks ago; BoJo sounds good but only because he's consistently tried to wash his hands of any responsibility from this.
Tories have no-one to turn to, and no time in which to turn to them anyway. Let us hope that they don't drag the country down with them.