Orochimaru

[Uchihajin Sasuke]

The problem with Orochimaru is that he is too obsessed with Uchihas to not look away from the sharingan, and be caught in a genjutsu

 

[PretaPath]

Not only that..
He was in bed and sick because he needed a new host body..

 

[Your Creepy Stalker]

White Snake Mode is pathetic. If he had been fighting him normaly, sasuke would be splattered all over the walls and celing.

Oh yea, and when orochimaru changes body, the only thing to stay the same are his eyes. Sorry, but you plan sucked.
Also, he could just kill sasuke and implant his sharingan right after VoTe