In order:
1 > 2 > 5 > 4 > 3 > 6
I'd save the 10,000 people first. More lives saved. Second would be the 1000 people, as that's the second most amount of people. When it gets down to 100 people I know, I think I'd rather save the person close to me, and then my close friends. If I've saved 11,000 people I think I can afford to choose my close friends first. Then myself last.
If I could only choose one (in other words, no order), I'd pick the ten thousand. Anybody who I saved after that is a bonus. I wouldn't save myself because I consider it wrong to put myself above ten thousand other people. I wouldn't save the person closest to me, because they would feel guilt that they had been chosen in the place of ten thousand other people.