If we cease to exist after death, you win the debate...
If there is an afterlife where we have the consciousness to comtemplate right or wrong, you lose - terribly.
No need to use geeky logic or become philosophical - it's not that hard to understand.
Indeed, nothing is easier to understand than Pascal's Wager. Whichever religion imagines the best heaven and the worst hell is the one that must be true.
It is not that hard to understand when their own religious works teach about an afterlife. The question to each Jew is, Do you Believe or Not Your Own Religious Teachings?