Borg, Nadal, Sampras, Federer, Nadal.
All include a significant element of reliability, versatility, power and control.
Others worth mention included Courier, Moya, Blake, Gonzalez and Del Potro; include much of the above but fail to deliver the full package to the level of the top 5.
i would have to agree.
i keep forgetting about moya. peak moya forehand was a weapon.