I personally would not want #2-#4. One of the reason I like Hacker News is that it's system is not customized to my personal behavior. I like that front page looks the same to me when I'm logged in and when I'm not (as far as I'm aware). I prefer the wisdom (or madness) of the crowd to the bubble of myself.

I also think #2-#4 would result in the diversity of topics & sources on my front page to erode.