Your favourite tanks

[Sheogorath]

The Panther wasn't an MBT...the closest WWII equivalent would be the IS-2.

I don't see how you can put anything second to the T-34 (in WWII) in terms of cost effectiveness. It's the second most produced tank of all time and was, by all accounts, pretty much your ideal vehicle when it came to squeezing bangs from bucks.

EDIT:
Of course, we're talking favorites here, so I don't guess stuff like that matters :P

[Kralizec]

I don't see how you can put anything second to the T-34 (in WWII) in terms of cost effectiveness. It's the second most produced tank of all time and was, by all accounts, pretty much your ideal vehicle when it came to squeezing bangs from bucks.

German tanks of WW2 are often said to be mechanically overcomplicated and expensive to produce compared to Soviet tanks. I'm not sure if it was a conscious decision but if so, it may partly because the Germans were shorter on manpower and had higher training standards. Expensive tanks can be worthwile if it means saving up on precious manpower.

My favourite tank would be the Sherman. The basic model was adequate against the majority of tanks fielded by the Germans (and superior to anything built by the Japanese or Italians)
Many variants were used, though not always in large numbers. The British Firefly version was able to destroy Panthers and Tigers easily enough, as long as it wasn't shot to pieces first.

[Fixiwee]

I'll go with the T-34/85 varriant. Fast, easy to produce and use, a serious canon that can ruin your day and furthermore produced in masses.