Which is more difficult - hitting a six or a four?

[MechEng]

According to your personal experience of playing hard ball cricket at any level, which of the two has been tougher?

 

I have never played comptetitve cricket of any kind, but I see hitting a six requires less skill but more risk is associated with it and hitting a well timed four requires high skill but is less risky in nature.

[zen]

Data shows that more 4s are hit than 6s suggesting that hitting 6s is tougher .... Though we have seen top edges fly for a 6, it is hard to hit a fluke 6, while an inside edge can go for a 4 more often 

Edited January 3, 2018 by zen

[Khota]

Six needs energy, timing and a sweet spot of the bat. So six it is.

Edited January 4, 2018 by Khota