The Republican Party is going to win in 2016 anyway, based on trends in Senate elections and past Presidential Elections. Might as well put up Hillary (who I don't like) and get her last presidential run out of her system before 2024 and a Democrat is elected again.
I wish I had your confidence. I don't, at all. It still appears to me that the Democrats will have an advantage in 2016 in the electoral college. I believe statisticians who are a lot smarter than me, like Sean Trende and Nate Silver, agree. The Dems are also technologically superior to the GOP, and Obama built an amazing turnout machine for national elections - something that I presume will roll over to the next candidate (even Hillary).
Now is Hillary the strongest candidate? Or will she be so Nixonian, incompetent, and polarizing that self-described independents, blue collar Dems, and even a near majority of women will flee in droves? I kinda think it's going to be the latter, but I was also quite confident that there was no chance in hell that Romney, with his message and resume and state of the economy, would lose to Obama. And then he did - not because he failed to win the independents, but because the base stayed home. That greatly undermines my confidence in my own electoral prognostication.
So, I'd still prefer that she lose the primary (but to whom??) because I'd rather not take the chance of such a despicable person being our president for 4-8 years.