9. The Rock
Now The Rock entering the the Rumble may be the most unlikely of the 10 guys on this list but he'd also be one the most dangerous. Recently The Rock has said that he won't be at Wrestlemania which means he more than likely won't be at the Rumble either but if he was to make an appearance, he'd be one of the guys who'd be an instant difference maker. Imagine if you heard his theme music play? We'd all instantly pop. The Rock transcends wrestling, he's one of the few guys that may just be bigger than the business. That's part of his appeal. The Rock doesn't need the Royal Rumble but the Royal Rumble needs The Rock.