I have to say that Invisible Pink Unicorn is far superior.
I mean the prove is there.
I have never seen a flying spaghetti monster so my best bet is that it does not existed.
But i have not seen a Invisible Pink Unicorn proving that is existed. I mean if i could see it then it could not be Invisible could it? So it must be there.
Aha! You see, because you have never seen something which you obviously should have seen, means you have experienced the great power that is the FSM. Blessed be His noodly appendages.
Since you can't see what you can't see, there is nothing for your faith to be based off of, since you obviously can't see what is invisible.
Bow down to my superior, noodly-given mind, heathen!!