Why is every time there's a question involving Taker n HBK, most users will have a hard time answering ?

Shawn Michaels was already famous as half of the Rockers before he joined WWE back in 1987. The Undertaker was just a midcard "giant" that did a heart punch in WCW before he joined WWE and was made a superstar overnight with the western zombie gimmick that killed Hulkamania! I say HBK is better and bigger legend because he made it to the top the hardway. But Undertaker seems to be the more respected one considering that WWE let him beat Hogan and has the undefeated streak at Wrestlemania.