In a wierd sort of way, Mika's voice reminds me of Freddie Mercury's, he has similiar tones that Freddie had, especially in the early days of Queen.
But Mika's recent music is pretty bad though and not a patch on his music in the 'Life in Cartoon Motion' album.
I think Mika needs to come back a more serious artist, singing more ballads as I think this is definately an area Mika needs to explore more.