Who's Better?

Who do you think, sings Secret Garden OST, That Man the best?

Is it Hyunbin, the original singer or Kyuhyun or Sungmin from Super Junior?
If you ask me, I'll say Kyuhyun sang the best! haha,, =)

Hyunbin

                                                                  

Kyuhyun

Sungmin

Please be free to tell me who sings it better? =)