In my case I heard his music a few months after I started to listen to MIKA. He is OK but I wouldn't pay to go to one of his gigs or even wake up at 2AM to see him.
In the article, it is mention that PW sound is more mature. I really don't think it is!!. Mika's sound is mature but fun!. Someone does not need to be angry or depressed to assume they're mature.
And Mika's troops are bigger and stronger!!!!!