That's sort of the way I see it to, Martin is actually the less proven of these guys. Joshua is a lot more explosive/strong, so I wouldn't be surprised to see him get an early stoppage, but Martin also might prove to have a chin or be a lot craftier than you could guess. He's a huge guy who looks to fight with substance, he's a lefty with big power who's never had a tough fight himself, it's a fun match up.