Who makes more mistakes- short stack or big profit stack?

[Lottery Larry]

A debate that emerged in this home game thread brought up something I want to ask HP:

In your experience, in home games, who makes more mistakes (or maybe more importantly, more EXPENSIVE mistakes) in a big-bet cash game? Pot-limit or NL, no tourneys considered.

1) The short stack players who have been chopped down
2) Short stacks who have rebought for the cap but are well under the average stack
3) Big stack winners
4) Big stack add-on/rebuy players?

Note that big-bet doesn't mean big blinds. I'm talking PL/NL instead of limit cash games, where most players have started from in their poker "careers".