Discussion of 1 vs. 2 vs. 3 aside.....
What the hell are you trying to protect? My point here is - Is your data worth the effort it is going to take to get past even one ? Probably not.
No offense, but I can't think of a single damn thing I could want off someone's personal computer. Paranoia strikes deep, my friend. Are you so busy trying to protect yourself that you have stopped having fun?
That's just my opinion.