ENTP+ENTP

This duo can get along right away because they are both engaging conversationalists. These two are "logical" in the same ways, therefore unlike many other couples, there are very few disagreements to be had that are brought on by misunderstandings. They both prefer to focus and theorize on the "big picture" and their possibilities. If both have healthy ego's (with this JTI type it's likely) they'll love themselves together and individually even more than before.

There are drawbacks to having a spouse that is your type that you should take into account. You have less resources as a pair in the actual world. Couples with complimentary characteristics are frequently more "skilled" at handling life's problems - where one drops off, the other picks up. But with ENTP and ENTP, (being of the same ilk), one can't effectively help the other on his or her weak points. When a real-world problem occurs (being laid off, crisis "x") one isn't any more effective in solving the problem than the other.

If there is physical attraction and you want to really connect with someone at least for the short term, then this is definitely worth trying!