Any religion or non religion that causes people to say "if you don't believe what I believe then you are wrong, bad, and I must say bad things about you because you believe differently than me"
Islam and Christianity are tied -- Islam because it preaches violence (despite someone having been given the title somewhere along the line of "the religion of peace") and Christianity because it lies about its own nature (meaning it claims to be rooted in Judaism but is so far from it that the two have nothing in common).