Finally got some sleep, and I'm still blown away. It's probably going to take me a couple days to fully digest the experience of this game.
I do think it's safe to say though, that Solid Snake is elevated to the status of baddest motherfucker in the series now that it's wrapped up. After getting to play as BB in Snake Eater and PO I was wondering how Kojima could get Snake out of his shadow, but man did he ever do it. The thing that makes him even more of a badass is that he's surrounded by bad motherfuckers throughout the game, and still manages to out badass them.
Also, the line from the theatrical trailer "Sound like a perfect job for me" is so fucking perfectly placed and delivered when you hear it in context of the game, has none of the "cheesy" connotations that the trailer frames it as having.