We are talking about music, not only about three groups.

I don't have anything against Led Zep or King Crimson, but you know what they say: nothing in excess.

You needs listening more before making an all time list

Cover of album a-ha "How Can I sleep with your voice in my head"
http://www.amazon.co.uk/How-Sleep-Your-Voice-Head/dp/B00008DCDQ/ref=ntt_mus_ep_wlb_dpt

Covers of my type albums below.


http://www.amazon.co.uk/A-Ha/e/B000APZPFU/ref=ntt_art_dp_pel_1
- a-ha album covers.



http://www.amazon.co.uk/Robert-Plant/e/B000APSZCA/ref=ntt_art_dp_pel_2
Robet Plant album covers



http://www.amazon.co.uk/Pampered-Menial-Pavlovs-Dog/dp/B000TA6OA6/ref=ntt_mus_ep_wlb_dpt
Pavlov's Dog cover album



http://www.amazon.co.uk/Future-Legends-Fruupp/dp/B001PMRKEG/ref=sr_1_4?ie=UTF8&s=music&qid=1262868563&sr=1-4
Fruupp album cover



http://www.amazon.co.uk/Wild-Seed-Morten-Harket/dp/B0000070QS/ref=sr_1_2?ie=UTF8&s=music&qid=1262868769&sr=1-2
Morten Harket cover album



http://www.amazon.co.uk/King-Crimson/e/B000APWKDU/ref=ntt_art_dp_pel_1
King Crimson album covers



http://www.amazon.co.uk/Talk-Yes/dp/B00005UO4J/ref=sr_1_19?ie=UTF8&s=music&qid=1262868867&sr=1-19
Yes cover album



http://www.amazon.co.uk/Never-Turn-Your-Back-Friend/dp/B0007LEAU8/ref=sr_1_3?ie=UTF8&s=music&qid=1262868919&sr=1-3
Budgie cover

I don't think this is a serious chart and if it is, you have to be biased in your views, 37 albums between 5 artists.
I somehow don't believe this can be true

the second half of this chart suffers a bit for lack of variety..