I rarely ever come down to two equivalent fingerings, as one or the other is almost always superior, taken as a whole. But say the two candidate fingerings were roughly equivalent in that they had more or less equal, but different, pluses and minuses. In that case I would, invariably, choose the one that was easiest to remember. In fact, I often fashion my fingerings with the goal of them being easy to retain, which typically means I apply similar patterns to similar passages if at all possible. Piano isn't the only instrument with this dilemma by the way. The stringed instruments, particularly violin, have many fingering possibilities for a given passage, and each variation has it's merit and downside in terms of ease, intonation, articulation, etc.