Personally if goku and sonic were to fight sonic would own goku, mostly because sonic can run at infinite speed (says the comic series). Imagine getting drop kicked by someone who can make lightning look like a slugg.

Ford has had the truck of the year every year except for 2 years and those years Chevy got it like warjin(125) i have a ford f250 from 1979 and it has 1,000,000 plus miles on it and it can run the quarter mile in 10 seconds flat

Ok, Ive played sonic my whole life and in these years ive seen something strange...shadow has 4 power rings that when he breaks off he get super powerful...but, when sonic gets 1 power ring he get 10 times more powerful than shadow with out the rings on his wrist and ankles... and yes normal shadow is stronger ,but supers, no, sonic is stronger