Songs wise - It is HJ, Even though HJ is repetitive, even the success of his songs are repeating only , Yuvan imho has more talent, he experiments, he is indifferent for certain directors, actors, so the success rate of yuvan's songs is not as much that of hj's... HJ on the other hand scores in the same vein for whether it is his favorite Gautam menon or occasional director like Durai (Thotti Jaya)

I like yuvan better, but i like HJ's songs more better