Completed FFXII just a few moments ago. The ending is phenomenal and imo even better than VII and X ending. Note: thats MY opinion so dont burn me for that
Well now im back to FFXII at my last save point before bahamut trying to get a 100% completion of the game including every side quest
EDIT
Ironically when sky fortress bahamut first appeared in a tornado it remarkably resembled galactus in his cloud form in FF ROTSS(As in the cloud swirling around bahamut , not bahamut itself!)
Both of them looked like a cosmic cloud when they first appeared and both are dues ex machina i believe