>>/39674/
If you compare L1 and T-55 the difference in armor doesn't matter, T-55 might have thicker skin, modern AT guns and rounds destroy it the same. So his >>/39669/ opinion is valid.
Comparing raw numbers the speed difference stands out, in favor of the Leopard.
The "user experience" also could be a basis of comparison, and a deciding factor when a countries' army decides what tanks to put into service, also possible training of the crew, or if they can produce replacement parts, or ease of maintenance, and many other factors. But I have no source any of this.
You might have a bad opinion, or made a comment just a bit too quick before considered the circumstances, but L1 might be a valid choice on behalf of Brazil. Or maybe it would be really a turd, who knows, unlikely we'll see that.