Few more thoughts on Randy.
I get his tone is now criticized but at the time, it was not. I've said this many times but growing up in that era, we just didn't analyze guitar tones like everyone would come to do. Everyone sounded different back then and that's about as deep as we got. If us kids could get a Marshall and an Ibanez Tube Screamer or Boss OD, everyone kinda built their own tone. I mean Neal Schon dominated the charts during that era and he had a vastly different guitar tone. Alex Lifeson, again vastly different. All guys that were releasing huge albums during RR's time.
Now when I listen to Randy do I wish it was better? Yep but mainly so players wouldn't make a big deal about it now, I always put it in context at the time. Not to mention all that brilliance came out of two albums recorded less that a year apart starting in 1980. And again, going back to tone in 1980, EVH's tone had not ascended to the benchmark at that time. Context in all this really matters. Zero doubt had RR lived he would have grown tonally as well.
Last thing on Randy - one of my favorite bits is the breakdown section in S.A.T.O starting at the 1:46 mark to the end of the song, especially where he catches that harmonic with the bar - all of that is just perfection to me, even his rhythm tone which slices like a knife.
Edit - one other thing, freaking Bob Daisley puts on a damn master class in bass playing on those two albums - I really couldn't imagine listening to them any different than they are now.