no ... Lampard is a good player but not the best in the world.
Ronaldinho is the best player in the world, I don't like the brazilian national team (cheered for Italy since I was a kid), I don't like Barca (I'm a serie A fanboy!) and I sure as hell aint the biggest fan of the man... but to be fair he is pure genius ...
I think then you have players like Juninho from Lyon, Requilme, Shevshenko, Totti (when he stops complaining and actually plays), Robben etc...
Lampard is a solid midfeilder, but one must ask... would he be as good without the star power that Chelsea have ?