I was asked this question today as I defended NSWGC against a somewhat outlandish claim that it doesn't belong in the Top 20 in Australia.
It got me wondering about these two courses so near and dear to my heart, and it's a hard one to answer because they share almost nothing at all in common.
Of course the prevailing wisdom is that the answer to the question is "yes", seeing NSWGC sits around 50th on Golf Mag's Top 100 World list and Deal is currently in the 40s in Golf World's GB&I list.
I can see arguments both ways, and so - knowing there are at least a dozen or so people on this site that I know of who've played both (and surely countless others as well) - I'd love to hear how others view the match-up.