I'm not a religious person, but
I wish people, Christians and religion teachers had less prejudices and knew that true Satanism is actually a good thing, although the Roman church always makes propaganda about idiot guys who define themselves as satanists, even though they know nothing about it.
Satanism is a religion that leads you to the discovery of the Paradise on Earth, to live your present life as best as you can and to enjoy it (but the Satan Bible clearly states you must NOT harm or kill ANY living being, which include animals as well as humans, of course, and that's why many satanists are vegans)
I know these things because in a period of my life I pursued a search in esoterism, and therefore I had to leave all of my prejudices and fears behind.
Anyway, if I should advise a religion to follow between Christian Catholicism or Satanism, according to my personal philosophy and to my personal ignorance, I would advise Satanism