I sat down and looked MoI over and compared them (in my head) and I have to say that I like SW's system better. Yes, it costs money (or influence) and xp, but the results are generally better for the wardens. The feel I got from MoI was the Force used to power psionic-ish powers that provide skill bonuses.
So I got something else instead (Serpent Kingdoms) that I hope I can use with SWS. Reptiles as feral wardens, heh. Reptiles as feral wardens in Oathbound, cool. Now if only someone would do a intelligent vermin book, I would be all set.