I wasnt saying FFXI is better than GW, i am just saying that the subjob system is similar yet at the same time different because of the focus on the games. FFXI focuses exclusively on group play when GW isnt all about group play(i am pretty sure its not as entensive if it is).
As for the story, currently GW's story cannot possibly beat FFXI's since XI is more established. :P Granted some parts of FFXI arent extremely detailed as it should, but still way more superior currently.