Goku: 537,000,000
Vegeta: 455,000,000
Pan: ?
Bebi: 1,000,000,000
Bebi Vegeta: (Around) 2,000,000,000
Golden Oozaru Goku: 1,000,000,000
Super Saiyan 4 Goku: (Around) 2,000,000,000

Super 17 Saga:

Android 17: ?
Artificial 17: (Around) 5,000,000,000
Super 17: (Around) 27,000,000,000
Super Saiyan 4 Vegeta: (Around) 2,000,000,000
Super Saiyan 4 Gogeta: (Around) 34,000,000,000 *

* Note: The reason why Gogeta has so much more power is because when Saiyans fuse, not only do their the power levels combine, their power levels also extremely increase, that's why Vegetto could beat up Buu so easily in Dragonball Z.