1) Neither one have concrete evidence
2) It all depends in what your believes are
Aside from pictures and videos (some of which are hoaxes) no-one (maybe the government) has actually physically touched one or have gotten irreversible evidence of UFO's existence (though I truly believe in them) to prove it.
Then, is GOD existence, does he exist? Again it depends on your believes, is like asking who came first the chicken or the egg? What do you think? If Alien exists, have you thought of who created them in the first place? I believe (again, this are my thoughts), that Aliens exist in this universe and also believe that they believe in GOD (it doesn't matter what they call him "Higher power"?), as to prove each one, or which one of them has more evidence, that's a matter of getting hard evidence to prove or dis-prove either one, right now we don't have that.
Hence as to why we frequent this forum!
We exist as living beings, so does plants and everything else that has life, Aliens are beings as well, so they could exist and if that's the case, then there is a GOD somewhere out there. If you can prove Aliens, then your answer as for GOD existence is also answered!
NO-ONE was born or life didn't exist here on earth or the universe out of nothing, THE BIG BANG theory? Something must've created those particles to collide, to create the bang. For everything that we see in life that we have no explanation of, for everything that just suddenly appears, there has to be a force of some sort behind that, a higher power, something or someone making it happen.
I guess I didn't answer your question did I?



