The firm that closely follows armor development recently said that the latest German Leopard was the best tank in the world at the training course- but that the Abrams was superior in battle.
Which would you rahter have?
No it´s not. The French believe in their LeClerc, the Israelis in the Merkava, the British in the Challenger, the Germans in the Leopard.. I think you get the picture. I am not aware of the firm you are talking about. All I have is a pdf document with an American study with the Leopard II coming out best (mainly due to the new gun). Everywhere where they had the L2 as a competitor for a new MBT, it came out as the winner (Sweden for instance or Turkey).