de Villiers and Dilshan are both damaging batsmen who have been in stupendous form all year. The one who has benefited the most from IPL is Jacques Kallis. South Africa didn't even pick him for 2007's Twenty20s, but with Bangalore, he found a way to develop his game against high quality opponents, something that didn't just help him find personal success and confidence, but also got him back into the T20I scene.