Wait, wait! I forgot!
As far as looks go, my favorite is the JSDF Type 74 tank. Slinky flat, cast turret, and that no-return-roller sag that we all love. Plus, it's the only tank I've ever ridden in. The local JSDF base holds an open house once a year, putting all their gear on display and even putting on a "battle simulation" armor attack complete with Cobra support. Then ya get to ride in everything. Except the choppers. Still, pretty sweet.
And if your a pacisfist, ya gotta love the JSDF tanks. Never fired a shot in anger. Except at Godzilla.
Well, that was usually a Chaffee, Sherman, or Type 61, actually.
I could go on...