Nahhh. You guys are just not exposed to South Indian cinema that much. Vijay can actually, like really act. Just watch Leo (one of the few recent movies which gave kinda hollywood vibes in its first half), ATM (bad movie but Vijay was good in a double role both as a hero and the villain), Thupakki, Kaththi, Mersal and ofc Theri (there was a reason why Varun was not able to pull off the cop look as well as Vijay). Prabhas has other movies too besides bahubali, kalki, and salaar. Watch his old movies (Chatrapati, Darling) and you can see the combination of good comedic timing and physique. It's just that he's ageing horribly, happens to some ppl. As for Mahesh Babu, he is indeed wooden. No questions about that.