My big and I were never all that close, sadly. Our bigs and littles were worked out to be mutual matches, which I always appreciated. But honestly, my #1 choice for a big got a little who relinquished her membership within a few months... and since my big and I weren't really close to each other, I've always had that slight chip on my shoulder. My twin, who was initiated two years after I was, was already best friends with my big, so what little relationship I had with my big dwindled even more. That was painful.
My first little is completely awesome, but she and I never really clicked as much as I'd hoped. But because of the sense of almost abandonment I got when my big took another little, I talked to my little before taking a second one. I told her who I was hoping to take (and I'd made it clear I only wanted a specific girl, not anybody else in her class), she said go for it, and I did. My first little and I are similar to my big and me--we're family, but we don't really talk. In fact, my first little moved about 45 minutes away from me about a year ago and didn't even tell me--you can imagine how upset about that I still am.
My second little, though, she and I might still live 500 miles apart, but I'd say we're still extremely close--even though she relinquished her membership. Mine is pretty far from the ideal sorority family, but they're all still my sisters, and I still love them all.