Each tank has their advantages, but if you’re going to have an army use a tank with little to no training or spare parts, the T-72 is definitely a no brainer.
Or you know a tank that will be used in actual battle conditions where you’re not going to have guaranteed support. The whole NATO strategy has been to invade small defenceless countries and brutalize people there. You don’t need to worry about stuff like logistics in these situations. A real war is a different animal.
Once again, it depends on where the tanks are deployed and what training the crews have. We do not know if these weapons were deployed and used in the same way. Unless you know this, you can’t really say.