Kyrgios has grown up a lot, much better then his younger days now. But Tomic has and always will be a flog in my books..
On Hewitt, he was always a little arrogant in his younger days but no denying he was a true work horse and always gave it 100% Thats how he one a lot of big games, not the greatest skill in the world but he never gave up and would often wear people out.