Titanosaurus is one of my favorite characters to see in toy form. Here's what I've got:
Each of these is fantastic IMO, but I really want the red, open tail Marmit Monster Heaven version, too. I wouldn't mind picking up a nice Marusan variant for the right price, either.
Somewhat kicking myself for passing on the X-Plus, but I think I might hold out for a 25 cm version.