Well you know when it comes to the Big Show you are for sure gonna see 2 things, someone attacking his knee, or an interference. And he is really less mobile in the ring as of late so right now I would say C- but overall through out his whole career I would give him an A.
I don't feel comfortable grading him like some kind of school report but I don't think Big Show has been responsible for a good match for years now. He's slow, gasses up very quickly and is lucky if he has to bump ten times a year lol.
Big Show back in the day was an ok athlete for his size and he could be part of a good match, but these days he's basically an attraction because of his size. I literally think I could do what Big Show does in the ring if I had his size and strength.
The big is a fucking boring tool. An F for his in ring performance. The fucker is slow, boring, doesn't take bumps, and makes people look like balls. I would also give him an F in entertainment. All he does is come out with his shit eating grin and either mingle with guest hosts, get his knee attacked, bury someone, or promote some bullshit. I fucking hate him and he shouldn't be on TV.
The biggest problem with The Big Show isn't how good/bad he is in the ring, it's that his size makes it damn near impossible to do anything to him. He's someone who you have to work around, rather than with.
He actually had a very solid year in-ring in 2008. And his tag work with Jericho from mid-2009 to early 2010 was pretty awesome.
He's booked so strong as a face, though, that it limits what the outcome(s) of his matches can be. And he's definitely become less mobile since early 2010. But he still knows what he's doing, it's just that his body can't perform at the same level.
Still think his match with Undertaker at No Mercy 2008 is something of an underrated, lost classic. Both men really "brought it," and I fear that they couldn't, ahem, match that match considering their respective cases of physical deterioration.