According to socionics, infp and estp are dual relations, and are most favorable for frienship and romantic relationships. I must say that I can see and agree with this. They are also the most easy type for me to identify. It's like they have a giant flag over their head waving "ESTP HERE!" I also find them the easiest to get along with. I love estp boys and their strait forwardness/ lack of political corectness. Estp girls are very "go with the flow," easy to have fun with and easy to work with. Yes, they can be a bit bitchy but they do it in such a relaxed strait forward way that I just expect it and it never bothers me. I also find this is one type in which I can dish the bitchyness back too knowing that they won't get their feelings hurt, so I feel pretty ok about doing it. I can't say I have a faaavvorite type, but i do always find some sort of connection with them moreso than in others. Any other INFP's feel the same?? My best friend is an estp and I honestly don't know what I'd do without her!! The only annoying thing is that she sometimes likes to "linger" around long after I wanted her to leave, she would rather spend her downtime with other people and I'd prefer to have a little of it to myself. But as far as conflicts go, that's about it and it's usually not a big deal.