You know of what I speak. I did try a 6:2 heavy inf:treb, but that gave rogue attackers too much time and space to get rouges in a position to hit--which I wanted to avoid at all costs! That "Gryphon Defense" lasted only one encounter, rogues hit and my city was breached. I went back to the Kraken (5HI:3Treb) and never considered a 4:4, because YOU also know, we must get the rogues turned as quickly as possible, but still have enough formidable fighters on the battlefield to give us a fighting chance.
That's ALL this was designed to do. I had no idea it would be as effective as it was.
Btw...I did experience some savvy commanders, evident by how quickly they adjusted tactics and used ponies to try to get the trebs out of the way. But, the slower moving HI were still positioned close enough to the trebs to hit the ponies before they could take out the trebs.
There were some exhilirating battle videos to watch! Yes, there really were skilled attackers evident by how close some came to breaching my city, but trebs are the best answer to that defense. I think so many were so used to using the standard champion/HI rogue army, they'd forgotten basic battle mechanics of other more effective units for that defense.
Anyway, I don't come here to provoke arguments, but to share my experiences, not flame anothers.
HMAers, try it, if you still enjoy trying to defeat your attackers...