Larry Smith wrote on Wed, Nov 12, 2008 04:26 PM UTC:
Zillions evaluates the Buffalo at 18340, higher than the Rook.
All evaluations should be taken in the context of the parameters examined. Thus when a piece is evaluated in its relation to mating, that is strictly within that parameter. The same goes with the evaluation of the average potential moves on a field. And Zillions definitely cannot be considered the final arbitrator of pieces evaluation, since it is a generic game engine and not specificly programmed for a particular piece or game.
But if the various evaluations begin to show a trend, the examiner might take notice.