User blog comment:YurdleTheTurtle/New AD/Armpen Setups for Season 3 - Quick Tips/@comment-4083774-20121207212451/@comment-4861674-20121208074021

I've seen some players prefer AD on champs who have high AD scalings as well. Makes sense for those who are also good early game damage dealers like Lee Sin.

A mixture of both is still my favourite though, allows you to be decent at all stages rather than putting it all in one over another.