I don't know about untouchable, but yeah the media favoured Obama. I don't think they had a problem with McCain (save for FOX at the beginning of all of this) so much as they did Palin.
Both are decent, honourable, and bright people.
He's given far better speeches in terms of entertainment value or personality that he portrayed. So, in that aspect I like McCain's speech. Disliked his crowed, but liked his speech. XD However...
Obama seemed...different. Biden was all smiles and then you look at Obama and he seemed very sombre. I think there's two things at play. First, he lost his grandmother (who had raised him) only the day before and second...he's smart. And he has my respect for that. For all the people who, figuratively speaking, are dancing in the streets at the downfall of Bush and expecting change to come over night - Obama could've easily jumped on board that boat and have a party. It could've easily been like the convention. What Obama conveyed in his speech is that he understands the magnitude of what the people of America have appointed to do. The difficulty involved. The importance in doing so.
It was a great speech. Not his best. But certainly far different from what you would expect for having just been elected President.