Okay, so I searched this a couple different ways and only found a Naruto fanboy saying Sasuke could slam Vegeta, so I'm going to make this thread and see what happens.
Post Time-Skip Roronoa Zoro
Pre-Vizard Ichigo Kurosaki
Yes, he gets Getsuga Tensho, Bankai, the works, no he doesn't have to worry about Hollow Ichigo messing with his head or intruding on the battle.
Neither of them get any prep, they just meet up and want to kill each other. If there's anything I'm missing, let me know. It's my first battle thread, so I'm kind of playing this by ear.