GSP has the WW title and the MW title along with the most wins in UFC history and most title defenses in WW history. He has 2 losses and wins dominant destructive winsover both men that beat him.
DC has 2 titles at LHW and HW but has 3 title defenses total and one of those was a close SD against Gus who he is actively ducking. Another defense was really a fight for the Vacant LHW belt since he lost it to Jon Jones. Jones has 2 definitive wins over Cormier and DC hasn't avenged that in the Octagon. He is now actively Ducking defending LHW against anyone worthy and campainging for a title shot for Shogun who in no way is deserving (This from a Shogun fan). DC needs to defend against Gus at LHW and defend the HW title at least 3 times to be the GOAT. He isn't the GOAT at HW as Fedor, Stipe and Werdum are all ahead of him and he isn't GOAT LHW as he is behind Jon Jones, Chuck Liddell and even Tito.
He has also DUCKED the potential GOAT HW in Cain Velazquez.
DC has cracked the top 5 P4P but Fedor, MM, GSP, Jon Jones and Anderson are all more accomplished. Getting 2 belts is great but lets see what he does. A defense against Shogun at LHW, then Brock and then retire is what I expect which does a lot for his bank account and nothing for his Legacy and actually detracts from it IMO. He can do those money fights and if he fights Jones for the HW title and wins then we can talk. Until we see that happen DC is not the GOAT sorry Daniel.