What makes General Grievous one of the worst characters to be associated with Star Wars ever?
His name
His voice
His cough
His “spider arms”
His patented windmill lightsaber attack
His utter dearth of real characterization
The amount of screentime he has in TCW
All of the above
#3 and #6. Everything else probably can be overlooked but the cough for no explained reason and the fact that nothing about his character was explained makes him just awful.