peak rosol is of course hard to beat but any hard serving and forehanding guy is when he is on
. Gulbis is hard to beat too when he does have a good day.
It is just hard to do anything when someone paints the line with 100 mph FHs.
However most of those bombers like gulbis or rosol rarely have such days. more often than not they make a ton of errors.
JJ has some power too but he seems to be much more consistent that those all or nothing bombers. guys like rosol are like boxers who want the KO with every punch and swing for the fences. but good boxers try to box smart and only go for it when they see an opening.