Here's what the list would probably look like now, though it doesn't necessarily matter, since the tiers aren't even being discussed anymore. Not to mention, the game is played online, where lag can make the list vary, and not offline, where everything is consistent.
Your telling me that Kenshi can't just do his simple infinite combo on someone?
all you have to do is 33, walk up, 33 and your done.
Online, Sub-zeros impale glitch is unblockable once you are frozen, so its basically 1 ice clone and its all over.
Quan Chi abuses the most broken aspect of the game, 50/50s, I actually win a few matches against some of the top players just by guessing where they are blocking.
Dairou, you may be right about him, but that really seems to be an online only thing.
But yeah, besides that, I pretty much agree with your list, it is much better then mine, and dubsons right, its way more accurate, I just really wanted to dedicate it toward more of the higher over powered characters.