*DISCLAIMER* I am a Calvinist, which means I lean more toward Predestination. I would prefer to have God in ultimate control of everything than to reply somewhat on my own actions….but anyway :)
I would be cautious of putting that “vs” there, as I think they are not mutually exclusive. Having one without the other would be breaking some theological beliefs that most Christians hold. If you say only Free Will, then where is God’s power in knowing the future and being in control? If you say only Predestination, than where is the responsibility of man for his sins?
In saying all that, here are some verses that I think contain content about each possibility, but I wouldn’t say that you can use them “against” each other to decide which one is ‘right’.
Exodus 9 (God hardening Pharaoh’s heart)
Again, I don’t think it is either or, but some unexplainable, mysterious combination of the two that we humans can never understand
Here is a book by a great theologian/apologetic writer about this very subject. :)
God bless you! (Even if you didn’t sneeze!)