The Allman Brothers aren’t really country and ****ie Betts (he’s not in this) is one the best guitarists ever. Vince Gill is a very under rated guitarist known more for his voice.
Bonham hands down. It’s well known Moon was all over the place with his beats whereas Bonham was a true musician. Listen to how he puts together the beats in Zep songs. All 3 Zep surviving members have stated that Bonzo was the glue that held them all together.
He’s one of my cousin’s, who’s played bass for almost forty years, all time favorites. Chris Squire, may he Rest In Peace, is another along with JohnPaul Jones.