This is essentially Sasuke's ps vs Madara's ps, I'm assuming no kyuubi. Sasuke's got the superior ps, it can do what Madara's can and more due to Sasuke's enton techniques.
I'm not sure if Sasuke's Enton could help him crack or slice throught Madara's PS tho'.
The same can be said for Madara then, I'm assuming they both have similar durability. The flames will have to slowly burn down Madara's Susanoo if it can't be broken.
Madara still wins with low difficulty. You cannot compare beyond god to a human being.
lol @ anyone who thinks Sasuke wins this.
Hold on big boy,
Sasuke's Ems is advanced near to a level of Madara's, coupled with a perfect Susanoo shrouded in nature energy.
Is it really that laughable for a Sasuke win in this scenario?
By no means is Sasuke's victory assured, but it's a better fight than you think.