Tamiya and Heng Long for starters.

Best bang for your buck, should I say small bucks, is Heng Long by a long shot. And they're even coming out with that new Panzerkampfwagen III you may have read about in this forum. I'm excited.

But the HL tanks have problems, about 1 in 10 (at least those commented about here) or so have slight electrical problems, wires coming loose, etc. So if you're a hobbyist and don't fear taking them apart, they can be fixed/upgraded/made right.

Love mine. A Pershing ["Snow Leopard"]. Nary a fuss yet.

-Harq