Some beliefs DO seem to ring more true than others. If this were not the case, why are there so many believers in God/Allah/Jehovah etc. and no long lasting and widespread cults to the Flying Spaghetti Monster?
To be fair to the Flying Spaghetti Monster (blessed be his noodliness) he has only had 3 years to build up a following since going public, despite rumours of underground Pastafarian cults over previous centuries. When you compare that to the ~2000 years for Jesus and considerably more for Jehovah I'd say the FSM isn't making a bad showing. I certainly don't see why longevity should be seen as proof of veracity.
TTFN,
WK