Not sure if serious or just trolling. I'll give you the benefit of the doubt and roll with the punches here.
The Great Khali can barely walk, let alone wrestle.
He can't wrestle, he can't talk, he can't do anything. He can't move around the ring, and it's not because of his size. Kane, The Big Show, The Undertaker are nearly as tall and can move 10 times better than he can (Khali isn't 7 foot 5 btw, he's 7 foot 1). Also, I fial to see how you can say he's a good wrestler. He does about 5 moves; clotheslines, big boots (where he struggles to lift his leg past the opponent's mid-section), scoop slams, that big chop and the punjabi plunge (I don't count irish whips or elbow thrusts in the corner or clubbing blows as moves).
He is 100% the worst wrestler currently in the WWE, and without a doubt amongst the worst wrestlers ever in history.
You want help on what's good and bad in wrestling? Then let me help you by saying that you should take The Great Khali out of your 'good wrestlers' pot and put him in your 'dab wrestlers' pot.