Bale isn't a goal scorer, it's got nothing to do with the opposition or the strength of the PL its the fact he doesn't have that goalscorer's knack of being a tap in artist, that's what's made Ronaldo the complete player he is; he can do all the flashy stuff but when it really matters he's just as capable of doing the ugly stuff as well
That and he absolutely dominated the box from corners and was also superb at defending corners (something RVP does so well for us now.)
There was a lot more to Ronaldo's game than *just* goals, he'd win us set-pieces by running at people (something we simply don't have now as arguably only Kagawa glides past people now) and he'd create an amazing amount of space for others which is why Rooney hasn't looked like a standout since Ronaldo left (remember people saying Rooney made Ronaldo look good? hmmm.)