Well we all now how good he is.
There are(were) many other powerful striker of the ball like Sehwag,Jayasurya,Afridi(when he is on song),Gilchrist,AB Devilliers,Watson & many many more.
But looking at Gayle's 2nd IPL hundred in only 4 matches,I have no doubt that he is the best hitter in the world.
feel sorry for WI cricket,with Gayle they could have at least won the series against Pak.