When I listen to Bonzos strait or usual playing I hear "Buddy Rich" very clearly, the attack, the style, the passion etc. We as musicians are all influenced by many things that we hear or like, I'd be willing to bet that Bonzo was like that as well. Zeppelin as a group was exploring some-what new ground (or at least different ways of doing things) so I'd also have to say that the whole band was being innovative to.
I've seen interviews with Rush and they all we’re floored by Zeppelin when they first heard them as teens.... Probably the same way the boys from Zep where aww-struck when they first heard Elvis.
I had the pleasure to chat with Jason many years ago, I asked him how often Bonzo practiced, hes reply was.... "Dad was running a farm and didn't take much time to play unless he was with the rest of the band. Two weeks before they went out on the road they would get together and that was about it."
Bonzo was an exceptionally gifted person so I think that he was mostly doing his own thing but he had to be influenced by and liked other drummers as he stated in interviews.