Gayle is for T20 (both format) what Sir Vib Richards was for ODIs. It wasn't just their records or abilities that sets then apart, it was the fear they used to put in bowlers mind that defines them alongside their records and abilities offcourse.
And as you can see, he was no slouch in other formats too, specially tests, despite being what people call mindless attacking batsman, he had 2 triple tons, which hasn't been achieved by some many ask time greats too, and actually had better record in Tests than ODI.
What a legend and incredible entertainer. Also as he's not yet retiring from ODIs & T20s, he's going to beat Lara's record for most ODI runs for WI and hope to see some more sixes from him.