Faiths stats equivilate that of Vlad, and far surpasses him in Swarm scenerios.
Faith is going to be the hardest to convert unless you max her pre event, but she is going to be the best one in the game, better then Gloria. She has base potentential to do 70% what Vlad does to a unit, and in groups of 2 115%, 3 150%, 4 200%. And since most events like Minas trials promote swarm, and Peoples defenses are made around swarm, she's going to be by far the best in my opinion.
However,, she is an extremely good air unit monster! So major conflictions there >.<
Debating about stocking up on her, but I hate waiting, and leveling monsters is quite time and money consuming....