Good post Gol.I don't buy that Jon Snow is a prophesised saviour. I don't buy that The Others are bad guys either. I don't even buy that there will be a big war in the end of the book series.
There are three things we know about GRRM.
1) He's a hippy
2) He was unlucky in love
3) He hates clichés in fantasy
The first is shown all throughout the book series. Its essentially an anti war piece which highlights the monsters within humanity during war. There are no heroes and there are no good guys. He bangs that over your head with a lead mallet all of the time because he is a hippy and like a hippy he wants people to know his views on things.
The second is also shown. Any character with any sort of love interest or is driven by love is murdered brutally and/or their image of love and their love is destroyed brutally. It makes sense for a guy whose ex girlfriend cheated on him with his best friend.
The third he has stated all of the time in almost every interview he has. He hates the whole "Good guys team up to fight the big bad guys behind a prophesised hero" cliché and said he didn't want to write a story about that. That's why it is very unlikely that any character in his books are actually anything more then what they are in the books and there probably wont be some great battle against the evil Others and their undead army. Or if there is, he will do it in a way that makes the readers shift their opinions on humanities goodness in this conflict.
Also, The Others being human makes sense. Humans have mated with The Others in the book and its pretty impossible to mate and breed with a different species then your own.
Another little thing for people. GRRM's other work is Sci Fi. aSoIaF is his first ever published series that is not Sci Fi. in all of his other series as well (Which he has stolen a lot of things from to use in aSoIaF) hive minded races are predominantly the "bad guys" so to speak. Rather, hive minded races are always in direct conflict with humanity. The only hive minded race in his current series are The Children of the Forest. Make of it what you will.
I agree with much of it. I think that there will be a war in the end, but it will be very different to what we are predicting. It won't definitely be Jon and Danny team up and destroy the Others.