For whatever reason, I find that I get along exceptionally well with Deltas, despite the fact that I am Alpha to the bone. Mostly I admire their ability to be productive and enjoy it, it seems like a wonderful balance to my excessively erratic productivity. Additionally, I find their apparent calm very soothing after all my excessive craziness. It's as though, after years of insanity, it's nice to settle down every once and a while to something so unwaveringly stable as a Delta. I know that too much of that Delta calm without enough of my Alpha crazy would make me either depressed or claustrophobic, but being around Deltas is always like a big breath of fresh air for me.
Generally, what I wonder is if the quadras outside our own to which we relate the best can be used to help pinpoint where we fit in our own quadras. This sort of occurred to me while chatting with munenori and udp over the past several days. I find that I get along well with munenori via a mutual Ne perspective on things, which often translates to our sense of humour (or at least this is how it appears from my perspective). Meanwhile udp and I generally get along well, and his caregiver temperament as well as the way he uses Si when we chat makes me comfortable so long as it doesn't infringe on my ability to channel my own functions (Ne and Ti). If you consider these attitudes and the fact that I generally tend to enjoy more Delta's then I do Betas, it seems fairly evident that I value Ne or Si over Ti or Fe. From there you can see how I react to ST's and NF's and perhaps get a better sense of what my base and what I merely value.
This strategy would only really work if you were confident about your own quadra and you had a reasonable understanding of yourself, but I thought it was sort of interesting. Actually, this thread was never supposed to be about using relations between quadras to type, it was just something that occurred to me while I was writing about how I like Deltas and how I kind of want to indulge in some Delta calm right now.