Quote: "They all are just three examples of a lighting system he created, called Advanced Lighting...download the advanced lighting system"
There are some simpler shaders he made that don't require the 'Advanced lightning' system.
Quote: "Which of the three shaders gives the best performance? which lookes nicest? which one is the easy-to-use?"
I think they render pretty quick all three of them. And, their 'ease of use' is equal, IMO. Which one looks nicest depends on your own preferences and the sort of game you're planning to make with them.
Cheers
Slayer rules!!! Yeaaah, man!