Again presuming in a "if you were a top-class batsman and were looking to score" rather than "if you were you and didn't want to be humiliated\hurt\both" capacity...
Would go, in order of "would least dislike to face"... McGrath, Ambrose, Wasim, Donald. Waqar would vary - the Waqar of 1994/95 onwards would come after the lot; the Waqar of 1990-1994 would come before any of 'em.
Wasim is a bowler who, despite probably not being quite as good as McGrath or Ambrose, was always a bowler you felt had a better chance of getting you out in a way you had less power to resist. He was phenomenally consistent, but perhaps not as consistent as McGrath or Ambrose and while being buried alive while sweat dripped off your forehead (which I'd imagine was the sort of sensation facing them conjured) isn't exactly enormously preferable to being knocked-over before you'd even got a clue (which often happened with Wasim, due to his speed, the lateness of his swing, and the difficulty that picking him up often presented), I'd imagine it is just slightly so.
Donald, as most people know, I rate the finest bowler of the 1990s and any batsman choosing to face him over anyone is mad.