While Vijay has many qualities that have helped him elevate to the top, one important aspect that I love is his action. While plenty has been said on his dancing abilities, his ability to excel in action sequences has hardly been discussed here. He is not a trained martial arts exponent or has a beefed up body that would scare the opponents. But there are some qualities which help him to look convincing as an action hero.
1. His Eyes
http://lh6.ggpht.com/-xweFU3fTpE8/Tq...85804686_n.jpg
He has a very powerful pair of eyes which comes handy for his action sequences. You can watch any fight scene of his post Ghilli and find the cinematographer giving importance to his eyes. The latest being Kaththi, where G C Williams, uses a few seconds, to focus his eyes in the pre interval fight. Another example is the police station fight in Jilla where Ganesh Rajavelu starts the sequence from Vijay's eyes. And even in the small sequence where Vijay injures Pradeep Rawat, see where the emphasis is on..
http://i.ytimg.com/vi/nDkYdeG0YAc/0.jpg
2. Speed and style
Like I said earlier, he may not be menacing with his lean body. But can keep you engrossed with his speed. Be the climax fight of Kaththi or the dog fight in Thuppakki, he makes his moves with terrific speed and style. A similar knife fight was done by Allu Arjun in Iddarammayilatho, stunt choreographed by the same Kecha. But you can see the difference straightaway.
https://www.youtube.com/watch?v=504hRHOx9x0
While Allu uses knife with speed, he doesnt have any style. He does a 'karikkadai bhai'. But Vijay uses the right kind of pauses, subtle mannerisms like lifting the shirt, etc coupled with speed. A treat to watch
https://www.youtube.com/watch?v=moBjeZH79-U
3. Usage of kicks
Even though he is not an exponent like Arjun, Vijay has had some training in stunts during his initial days. His flying kicks are second to none. In almost all fight scenes of Priyamanavale, Kushi and even in Kaththi he uses them to perfection.
https://www.youtube.com/watch?v=gWuPZsuaM40
And this fight scene is the best of all..
https://www.youtube.com/watch?v=-Eo_AmOW1TQ