I really kind of go where the wind takes me for missions or trading, but home is HIP 93377. (Kooi Gateway) They have Pristine metal rings, pristine ice rings, really awesome place for mining, close to ports where the metals sell well, ... Frynn I think. So that's where I keep most of my ships and spare parts.
The kids and wife love to hang out at Haxel Port at LTT 15574 where they swear there is the best bounty hunting, and so forth. And my home port is close to there, so I keep some fighting ships to join them.
Anyways, every time someone says they found a great place for mining or home base I always go check it out, but so far, no other port has come close. Although I'm looking forward to reading the thread and checking out some new places.