Like their way or mode of being? I was just curious how you meant that. It's an interesting line of thought.
Your very correct point concerning rank and order notwithstanding, I think the original poster was just asking which Avenger you'd want to marry, not which one you'd be able to if they were real.
---the late great Donald Blake
In that case, none of 'em. I don't think there'd be too much in common, and I wouldn't want to be married to someone who might die to violence, or, this being comics, become the victim of demonic possession, body-switching, or plot-induced omnicidal mania.