Yes your right that the original Tiger tank was underpowered, but I believe the King Tiger or Tiger II with its newer power plant from Porsche. Though it is true that the King was a gas guzzler, and often was abandoned by its crews, I believe this is because the time the King came out Germany no longer possed the ability to continually supply the needs of the King. Thus the need to abandon it.
I do concede that another excellent tank was the T-34, the T-72 even in its own generation was said to have great quality production flaws.
I don't agree with your choices. The King Tiger was unreliable, a gas guzzler and grossly underpowered. It may have been very difficult to knock out from the front and had a powerful high-velocity gun but most either broke down or were scuttled by their crews when they ran out of fuel.