The Importance of Hole Cards when mining

[SamIAm]

Right now, the poll is split 50/50, which is pretty shocking. What do you guys use the hole-cards for? I don't just care about preflop stats; I care about TONS of stats. But none of them need the hole-cards. I care about how often the guy sees the showndown. I care about how often the guy WINS the showdown. But I'm not going to really care what he tends to win the showdown with.

You guys are obviously using the data for different things than I do. What do you do with piles of observed hole-cards?
-Sam