I don’t know anyone at PWP and I only personally know one person at Lazard (but, Lazard definitely recruits at Emory, or at least used to do so). And I didn’t go to GBS, so I’m not the best person to ask.
Take interesting, useful classes (not necessarily the toughest available, but sometimes they are)… meet the right people… make good impressions… be friendly and willing to learn and ambitious and motivated… Emory has a ton of opportunity for people who are willing to put in time and work.
But, while Emory grads exist in those top jobs, it’s not a feeder school like HYPWS - as long as we’re clear about that.