Some great gems posted here. I love the classic Philippines 747 up thread. I have a couple of rare birds in my collection, but the one I picked as my favorite for now is my Inflight LE 747 in Caledonian livery.
G-BMGS Caledonian 747 Left
, on Flickr
I picked it up early in my collecting days without realizing what a gem it really was. I have never seen another for sale.