The thing is, Agassi has a career GS. That alone trumps the extra achievements that Djoker has done......for now. One more GS for Djoker will correct that. So for now, Agassi is ahead
Very reasonable perspective. I'm just more impressed with what Djokovic has done, career-wise - he really did something impressive each year since 2007:
2007: Loses only to Federer or Nadal at the majors; epic 1-2-3 win in Canada
2008: Ends Fed's stranglehold in Melbourne; only guy to semi-push Nadal at RG; wins the YEC
2009: Great toe-to-toe clay season against Nadal; their Madrid SF put the final nail in the coffin on Nadal the raw, breathtaking athlete.
2010: Big win over Fed at the Open; great DC title run.
2011: No explanation needed. Apart from everything else, Federer-Nadal was like a brick wall on the tour for half a decade, and he demolished it.
2012: Semi-underrated here; fended off all three rivals at various times, and emerged as top dog at the end.
2013: One of the strongest PoY runner-up seasons in the Open Era (similar to Connors 1978 )
2014: Just very solid across the board (though some disappointments) - big titles on all surfaces.
Agassi checked out in the middle of his prime, and didn't have his signature season until Pete faded (just a little) in 1999 (and he still lost to Sampras in their two biggest matches that year). However much Nadal was exhaling/burning out in 2011, he was still just 25 and making final after final on all surfaces. And Djokovic just nailed him to the wall.