Umm.. kinda tough. Tsonga has had the game, he's been around since last year and we have seen him before. I was surprised but not terribly surprised since he had it in him in some form.
Simon surprised, yes, but again like I said, besides having a win over the top 3, he hasn't done much in terms of results. So.. yeah not that surprised or anything.. well surprised he beat the top 3 but thats it.
Cilic was solid and fell right at expectation.
Del Potro I think surprised me the most. From what I remember last year and what he has become now, I am surprised. And not necessarily a fan but surprised he could even do what he has done.