I personally dont think DRG is that great. He is a great Zerg in his own right but I wouldnt put him up there in the top 5 zergs. Was did the poll itself say? I dont think it said "pick the top x players", think it was based on favoritism. Huk and Jinro are very likable players. It would be another story if it was a skill based poll...
Also, DRG is definitely better than the other 5 names i didn't mention(MC, Huk, Jinro, Nada and Boxer), and the names i mentioned aren't "great" they're just "good." July, who, despite his legend status, cheesed his way into semis and MKP who isn't exactly is top tier terran.
But you're right about favouritism part. I guess i'm just disappointed that Losira, Bomber and Optimus isn't getting enough love