I agree that there is more to attraction than EQ or IQ. I think if I had to choose between a partner with an above average IQ or above average EQ I'd select the latter. Social competence, empathy, emotional regulation, etc... is just more important to me than intellectual potential. I agree too that a functional society needs a variety of individuals with different strengths. Hence how socionics intertypes work and the world at large. That's why I also like Howard Gardner's theory of multiple intelligences.
I'm not sure that I am convinced by your logic about the IQ of forum members around here but there's no real definitive way to measure since not everyone has been given a valid IQ measure (online tests are generally not valid at all). Also, I'm not sure if you are only thinking of the most active forum members or everyone who signs up and makes at least one post. Plus, I am an example of one of those who is under 1 std deviation above average, unless my score has changed since I was tested in middle school (which supposedly it should not change much). Anyway, its not a topic of much more interest for me to argue beyond this post.