I took a read on the Kid Buu fight to refresh my memory. Goku did stated he was going all out. I think i'm going with these:
SSJ2 Gohan: 360
Fat Buu: 480
Majin Vegeta: 600
Fat Buu (1st power up): 720
Fat Buu (2nd power up): 900
Majin Vegeta's finger attack: 900
Fat Buu (Mad): 1,200
Fat Buu (Full Power): 1,800
SSJ3 Goku (Holding back): 2,160
Kid Buu/SSJ3 Goku (Full Power): 2,400
SSJ Gotenks (Pre): 3,000