I guess Traya:Bastilla relation before Revan release is the best P2P:F2P relation.
P2P will gain previllage from paying, so they will keep spending money on this game. F2P will not have much chance against P2P, but the chance will not be as small as to discourage F2P to quit this game.
To put it in numbers; P2P defeats F2P with p>60% chance, F2P defeats P2P with q<40% chance.
Bastilla Fallen is either too soon to be introduced for a character with this much power, or too OP to be introduced when Revan meta has just begun.