According to Google trends from 2004 to till date , Prince Mahesh babu is being searched by public just few point times higher than his second rival heroes Allu Arjun & Prabhas . It means Mahesh is the most popular among heroes in Tollywood . Mahesh is leading with 18 points , Allu Arjun & Prabhas giving neck to neck fight to Mahesh with 16 points(both) ,Pawan Kalyan with 8 points, Ramcharan with 5 points , and Jr. NTR with 1 point on average among all categories world-wide from 2004- till date when only top 6 heroes of Tollywood are compared . Here is the graph..

Note: Every thing depends on spelling after all Google trends is just a software. For example Pavan, Pawan gives different results, ntr, Jr.ntr gives different results. IF NTR is considered in search it gives 36%.