Why tamil heroes are bad at dialogue delivery. Review on Kanaa Kandean Movie

If you look at Tamil industry especially modern actors, none of them have a crisp and clean voice and dialogue delivery(except surya). Where as people from other state like Prakash Raj, Arjun, Mamooty are some of the examples. Look at vijay and prasanth. They both have irritating accent. Even Vikram has a bad dialogue delivery. To confirm my statement in this movie suave Prithiviraj spoke each and eveyr sentence with such crispness that it pierces through your heart. His intense look, calmness makes his character much more terrifying. His character is more or less like the cool guy from kakka kakka. But his character is much more dangerous and cunning. When was the last time we saw such a cool villian! We have to go back to Rajini kanth's periodor Raguvaran's character in puriyada pudir and poovizhi vasalile! vijayakanth, sarathkumar, vijay, prasanth, vikram none of them have that deep voice that is required to hold your attention. Here prithivaraj's entry into Tamil industry is a welcome entry. Recent movies have come out with original and cool plots and nice casts. I think hero worship will soon disappear at the advent of new actors.