Define very different. Because Buddhism and Taoism are quite different from my Western sensibilities but I'd probably marry a Buddhist or a Taoist. Or Shinto, which is Japanese ancestor worship, that's a pretty banal and tolerable religion. I'd feel comfortable marrying anyone of a religion that is limited in the amount and extremity of its superstitions and which generally promotes peace.
The only religions I would actively avoid are the ones so dangerously irrational that they lead to violence, which in today's world is mainly Islam or some sort of suicide cult like Jonestown, Heaven's Gate - or some hardcore version of cult-like Christianity (like the creepy QuiverFull movement) which is self-destructive.
I'd also avoid marrying anyone where I might be expected to convert OR be ostracized by her half of the family for not being the same religion.
Also I might marry someone who defines themselves as a Pagan but it depends on how much they lean toward New Age. I can't stand New Age nonsense about crystals and tarot cards and this bastardized pseudo-occultism nonsense.