Equal on emotional and intellectual terms.
It's really hard to explain. If I take my OH, he's very soft, kind, sensitive, but would never let anyone take advantage of those traits, including me and the kids. He's the 'go to' person if anyone has a problem because he NEVER judges people. He's a provider and a protector...he carries my bags, opens doors...and he wouldn't hesitate in helping anyone else out, male or female.
Much, I think, comes down to personality. I'm happy with my part time job, house keeping and cooking. He's happy working hard, eating food and nodding off.