This is an article on pastebin.com, and I wanted to see what you guys think about it.
Let's put into perspective how overpowering goku really is, using only the DBZ canon. Vegeta, during the saiyan saga has a Power level (PL) of 18,000. With it, his galick gun would've blown up earth, had goku not stopped him. When he first turns super saiyan, goku has a PL of 150,000,000. Assuming that all vegeta could've destroyed is the one planet, goku's power would allow him to destroy a being with power equal to 8,333.34 planets. Without progressing goku's power level any further, since there are no canon official power levels after that, we'll simply use that value and apply transformations. SSJ1 = 15,000,000 SSJ2(SSJ1x2) = 300,000,000 SSJ3(SSJ2x4) = 1,200,000,000 ((SSJ4 is uncanon, and will not be used.)) As a ssj3 without progressing goku's base power any further since the frieza saga, goku can destroy the equivilant of 66,666.67 planets Along with this,vegeta took goku's 32,000 PL Kaio-Kenx4 kamehameha + his own 18,000 PL Galick Gun. That totals to a PL of 50,000, giving the combined beams the power to destroy 2.78 planets. From this, one can infer that you can withstand an attack of equal or lesser planet-busting capability of 2.78x your own. Meaning SSJ3 goku without progression can tank an attack that can destroy 185,333.34 planets. Goku, in dragonball runs the 100m in 8s. That yeilds him a speed of 12.5 m/s. Meaning that 1PL = 1.25 m/s. Goku as an SSj3 would have a speed of 1,500,000,000 m/s. 5 times the speed of light (299,792,458). Applying relativity, Goku in SSJ3 would be traveling at 298,970,962. That's more than 99.7% of the speed of light (Thanks to Sunny Sanity from gaiaonline!) Vegito easily outclassed SSJ3 goku in all ways, defeating Buuhan who was able to make SSJ3 goku his bitch. Bills was officially stated to be more powerful than vegito. Bills was able to stop a SSJ3 goku with one finger. A power gap more immense than anything ever seen in DBZ before. Even gohan at 200,000 vs Frieza at more than 1,000,000 wasn't that much of an overpower. Goku after achieving SSG is shown to be able to fight on par with bills as an SSJ1 (since he absorbs that power into his being somehow, goku hax) Applying that power level (never stated, no stats on it) to the 400x bost of an SSj3 would render goku's true power level. Goku can also use kaio-ken to multiply his already immense power level. He's been shown going up to kaio-ken x 20, so that's the max i'd reference. SSJ3 pre-god goku using kaio-ken x 20 allows him to destroy 1,333,333.4 planets, tank 3,706,666.9 planets, move at 300,000,000,000 m/s (1,000x the speed of light). His PL is 240,000,000,000. And to top it all off, all of these values are horrendously lower than the power level post-battle of the gods because no official values for power levels were posted for goku after the frieza saga. Post-Battle of the gods SSJ3 Kaio-kenx20 Goku would fall to nothing short of superman prime. If we only face him against canon characters, then nothing poses a threat.