Just thought (in case it is not known) that you might like to know that the 6x6 version of reversi has been solved (assuming optimal play from the opponent.
This is the work Dr Joel Feinstein from University of Nottingham, and former British champion of othello. White wins 20-16 with the diagonal setup, and 19-17 with the horizontal/vertical setup. This is of course when both play optimally!
I would say not that I have noticed! In 6x6 reversi, white achieves a narrow victory, so there is a suggestion (but no more than that) that white could have a very slight advantage at the larger games.
Please note, I am talking from a point of view where BLACK PLAYS FIRST as in reality!