idk. It is subjective to what you prefer. For style, I would have to say KennyS. For consistency, I would have to say Guardian at least until 2019. For flair and intelligence, I would say FalleN, at least in 2016-17.
But ZywOo and s1mple brings all these qualities together so I would say them.
device if we measure achievements and consistency
kennyS for me
if someone says s1mple or GuardiaN, i can understand and respect their opinion, these 3 are cemented top 3
fallen device jw come next in line
although he not one of my favorite players, device is the goat awper for sure. he achieved a lot and remained consistent for a long time
But FalleN, GuardiaN, kennyS and JW in their peak were very good too
EDIT: s1mple deserves an honorable mention here, he is younger than everyone i mentioned, he has an insane skill with AWP and he can surpass all the players I mentioned in achievements.
Allu ez, next question HLTV?