IronStar: Meh I don't really count failarmy tanks as real ones. French had best tanks at the beginning of WW2 and managed to do nothing with that. They weren't produced nor used enough to make any difference.
Which doesn't mean some of the designs were rather good, at least on paper. I believe the Germans captured a fat load of them, but their combat performance went largely unrecorded; I suppose they were mostly stationed in occupied non-combat territories.
IronStar: Panther was vastly superior to Russian designs of the time, even though it was based on t34 as it.was designed not to be destroyed in less than two weeks of service. I don't think they continued producing pz3 at the time Panther was massproduced.
I agree that the Panther was vastle superior to the T-34 and probably remained so throughout the war, but it did have a few disadvantages related to external factors. For instance, it was more expensive (not that Germany would've won even if it wasn't) and it ran on petrol, which created logistical difficulties. The Panzer III was produced alongside the Panther, although not for very long. I think the IV was built throughout the war, though.
IronStar: Maus was logistically disaster, and probably most idiotic design that was ever made, as even if they managed to make more than two, it would get bombed to death by aviation the very moment they spotted it. Situation is even worse for (thankfully never made) rat.
It's a hilariously impractical thing. Large areas of the deck are covered with grilles that are just begging for an artillery strike or a 250kg bomb. It also chugs petrol at the rate of about 2000l/100km (0,14 mpg for you Brits and 0,12 mpg for Americans) or about the same as four Tigers. The mere thought that the Germans ever though of wasting resources at something like that makes me facepalm. The smaller E-100 wasn't that great either.
langurmonkey: You sound like I should know that the Tiger I was an unstoppable killing machine but it wasn't. I also read the Tiger I broke down a lot.
Heavy tanks in general are more unreliable than light ones because of the high stress their mechanical components have to take, and the Tiger was no exception. The Tiger's wheel design (
seriously, look at it) let mud and ice to build between the wheels, potentially jamming the drivetrain. Imagine trying to access one of the rearmost wheels for service: you'd have to strip a load of wheels off three bars before you could even get to whatever it was you were doing, then stick all the removed ones back in place.