Why is Andre Ward considered a scary fight for GGG by some?

Andre Ward is a solid fighter, but he has a questionable chin and minimal power. The only advantage he has is that he is bigger (which is a definite advantage), but people are acting like Ward has some unbeatable combination of skills, which is ridiculous. If not for the Super Six, nobody would have cared if he had beaten who he did. It was the fact that all these guys were in a tournament on Showtime that made it special. The six competitors were not all beasts. Who has Andre Ward beaten that is elite? Froch - who should have about 5 losses by now? Kessler, who's only claim to fame is losing to Calzaghe, and who was headbutted by Ward repeatedly? His best wins: A drained Chad Dawson, who had a good run for a little while at LHW but had no business being at super middleweight and who has been discovered to have a glass chin. A blown up Arthur Abraham, who had a good run at MW against nobodies but had no business being at super middleweight. He also lost his previous two fights in the Super Six before losing to Ward. Allan Green a B- fighter at best, who has lost every time he's even come close to stepping up. Edison Miranda - another fighter who has lost every time he stepped up, and was dominated and stopped by Pavlik at 160 which Ward couldn't do. Carl Froch - the best win for Ward, but it wouldn't be considered as good if Froch had another two or three losses like he could've easily had. This guy has had a bunch of lucky wins. He should've lost to Jermain Taylor but pulled a lucky punch out of his ass right before the end. He should've lost to Groves in the first fight but probably paid off the ref to call it at the first excuse. He could've easily lost to Dirrell in a disputed decision. He barely beat an ancient Glen Johnson. He did lose to Kessler in the first fight, and the second was questionable. Mikkel Kessler - a good win for Ward, although Ward headbutted him into submission. Kessler is a solid fighter, but nobody is putting him into the hall of fame. Kessler is most famous for losing the fight to Calzaghe.