I don't know if a consistent strategy would
really guarantee a good score for you. The reason being
that people don't have access to the same amount of
information. If I wanted to win, I would be indifferent about
what I picked for the more finite categories, like
Welles films and Roman emperors, as you can assume
you're going to get doubled there, but go really
esoteric in the practically unlimited categories like
plays and SI units.
Jeffrey Bennett [who picked
the first things that popped into his head without
any strategy and might come in last again like he did
in ETC's Fantasy ACF]