Same here, it's impossible for me to decide which one I like best since there are so many. For different reasons I may name a few:
Water Bear Echiniscus sp. by Agatsuma Entertainment (the figure from my avatar). Because before I had started collecting I saw one offered. Years later I tried so hard to find it and couldn't locate any so that I nearly thought either I had made it up or I had confused it with something else. And then I found it again on Jauce!
All of
Johan Scherft's models (okay, these are paper models but they are highly accurate and real pieces of art).
Battat (Museum of Science, Boston)
Diplodocus - an awesome masterpiece sculpted by Dan LoRusso. Not just because it's rare but because it's simply wonderful and because it was ahead of its time.
Safari Ltd Tennessee Aquarium Collection Fire Salamander. I use quite a few of my figures as teaching resources at our university but none of them as often as this one. And it's definitely the best toy figure of a Fire Salamander that's ever been made.
Safari Ltd Vanishing Wild Collection Female African (Bush) Elephant, a superb and hefty figure. I have two, the heavier of them weighs in at 1447 g!
Kaiyodo Aquatales (Polyresin) Indo-pacific Sailfish. Because it's currently the best figure representing my favourite fish.
But I could easily add ten or twenty others to those.
