Agreed as far as the song - that is rather apt! Though I'm not a fan of They Might Be Giants, I love the back-and-forth contradictory chorus - "I'm your only friend / I'm not your only friend / But I'm a little glowing friend / But really I'm not actually your friend / But I am" - which is pretty much Dean & Castiel's relationship in a nutshell. Affection, judgment, and duty keep changing the tides, especially on Castiel's part. And though the song is quite bouncy and upbeat, the lyrics have that edge that's essential to this pairing. (The bit about Jason and the Argonauts? Brr.)

I'm not familiar with Buffy, so it's hard for me to make judgments, but as far as Supernatural goes, I can see what you mean, the Otherness especially, which is consistently disappointing. The closest they've gotten to refuting this was their angel allies - Castiel and Anna - but even then, that was annoying, because the "good" angels were the most human-like... assimilated, if you will. They need non-human allies, damn it, and they really need to find some Othered beings that aren't evil. Shapeshifters, for instance, or ghouls, since they seem to be Othered beings that don't have anything inherently "dangerous" about them - the ones that are dangerous are so because of what non-Othered humans have done to them - and move from there.

As for women in Supernatural... AAAAAAAAH. CANNOT COMPUTE MASSIVE AMOUNTS OF FAIL. And, yes, I am completely ignoring Ellen and Jo's deaths. While I am happy that we did eventually get female hunters - and black ones, too! In the same episode! And neither of them died or went evil! - I really liked them! And now they're dead, for no reason. (!!!) Like, I agree with coffeeandink - if you must, kill Jo, but leave Ellen alive. And then imagine that horrific character arc. (See, Winchesters! Other people than you can feel pain about family!)