They both give me wicked dejavu. I can't help feeling that I've played that game before, over and over and over again. Kill the monster, gain some points, kill larger monster, gain larger points.
That said, I've much love for gpotato's buissine…
What degree of transparency are you planning for the game? Will players be able to reliably tell at a glance how effective a skill will be? Or will it be a guessing game?