Yeh, obviously McGrath and Warne > Clark. But personally I'd take Clark over Dizzy and Kaspa, although saying that, I've seen very little of either of them and the main time i've seen them was in 2005, where they were off the boil somewhat. Where Dizzy and Kaspa better than Stuart Clark's current level of performance?
Gillespie was once a superb bowler, capable of considerable movement and pace up to over 150kph. This article credits him with a delivery at 153.9kph. However, he was not your typical pace bowler, as he often left his pace in reserve and concentrated on hitting the right line and length and extracting seam movement. He was the perfect foil to Mcgrath; a quicker bowler who beat the bat tremendously often and built up the pressure with Mcgrath.