Board Thread:Questions and Answers/@comment-27210738-20151113205526/@comment-26091912-20151118043958

It's hard to say.

Zanka No Tachi can protect Yamamoto from direct attack via Kaka Jumanokushi Daisojin; not to mention the temperature of his body can reach the same as the core of the sun (15,000,000°C, i.e. he's untouchable). After a while, Zanka No Tachi will eventually destroy his opponent, Soul Society, and even himself. Given all that, I would still say "Dangai" Ichigo would win that fight.

Current Ichigo, on the other-hand, would probably lose that fight.