I disagree with just everything you have said, not in the same league ? In the early 70s they were in same league, I love both Zeppelin and Purple and have seen both in concert, both were great, but Purple were a bit bitter IMO.
Made in Japan was one of the best Live shows ever, the best of 3 nights, and at least it they did not edit the heck out of it like Zep did with The song remains the same, I dont think you can really compare the 2 bands, both great in their own way.
Lord was a key part of the Purple sound and to this day I LOVE his Hammond, Studio albums puny ? Listen to Machine Head or In Rock or Burn, nothing Puny there, just some of the best Music to come out of the 70's.
Stargazer a desperate Kashmir ? thats just insane, both are classic tracks in their own right.
The only thing I can agree with here is that Rainbow Rising is a great piece of work
Even Purple today are better then alot of the bands out there.
I guess maybe we can agree to disagree.