Before, I had Megaman X vs Samus. Now let us see how the original does it.
Megaman has all of the abilities and upgrades that he has ever had access to in his main games as well as the abilities that he can gain from Megaman X Street Fighter. He also has access to Rush and with that all of Rush's abilities as well as the Adapters (or more specifically the upgraded super adapter mode)
Samus has access to her best suit and all of her skillsets and powers, upgrades, etc.
In the first round. Who wins?
In the second round, Samus has her Manga capabilities as well. Who wins?