I'd have to say some sort of B-tree. Though many bugs live in mine, I still like it. The amount of leaves it has throughout the seasons may very wildly, but I like it even if it has no leaves at all. I don't think I have ever framed a leaf from it myself, but I have definitely serialized it into binary and sent it off over the network, so it's possible that somewhere along the route it got stuck into an ethernet frame.

All in all an A-tier tree and I would definitely get a new one if I lost this version.