The online survey was conducted to coincide with this weekend's opening of the film "The Lottery Ticket," starring rappers-turned-actors Ice Cube and Bow Wow.
Smith came in first in the poll with 58 percent of the vote, followed by Mark Wahlberg at No. 2 with 23 percent and T.I. at No. 3 with 7 percent.
Ludacris and Mos Def tied for last place with 6 percent of the vote.
The Web site did not say how many people participated in the survey.