Figured out awhile ago that Pascal's wager was an...at the very least...false dichotomy. It would only work if one knew that only two possibilities existed; a very specific god, or none at all. Looking around me I see far too many versions of God...pretty much contradictory. Which one should one 'bet' upon?
I wouldn't call it a false dichotomy. I agree that Pascal didn't do himself any favors by limiting the argument to the two options: Christianity or non-belief. This, of course, leads to the "Many Gods" objection. I think these objections can be easily answered.
Since it is true that we don't know which religion is right, it is logically plausible that for any god of Religion (A) there could be a different religion, (B), that actually IS true, and the god of Religion (B) will damn any who who believe in Religion (A). However, it is also true that there are only a limited number of religions such that there is any reasonable likelihood that we could expect to come to believe in them.
For example, it may be that Christianity is true and Islam is false. Or it could be that Islam is true and Christianity is false. If my objective is to come to believe in a religion, I suggest that the rational course of action would be to try to become a believer in whichever religion I am most likely to be able to come to believe in. Maybe Islam is true, but I do not have any Mosques nearby. I don't know any Muslims that I can discuss religion with. On the other hand, there are Catholic Churches nearby, and there are several people in my family that believe in some form of Christianity. Under these circumstances, it might be more rational to take efforts that would maximize the likelihood that I will come to believe in some form of Christianity.