Based on some of the evidence that has been circulating up to now, Shanks's power looks amazing even for the size of a yonko.
When compared with Big Mom, then his ability was still less impressive than Shanks. Though Shanks still never showed all his strength.
There was only one moment up to now where he fought seriously against Whitebeard. However, it only makes the sky appear split because of their strength.
So what do you think is Shanks's strength? let's see together based on what happened.
1.Not a devil fruit user
2.tremendous strength of haki
3.have a sword ability balanced with mihawk
4.akainu shy against shank
5.have a physical strength that is balanced with shirohige