Folks!
I hate to see contention over such a basic issue among fellow members. I am a *** Laud Graduate with a B.A. in Music, btw. IMHO, the most incorrect meter of the three in contention, would be 6/8. Why? Because essentially any such notation involves where the accents lay, which of course takes into account drum/bass accents, as one member has mentioned here. Frankly, the most accurate of the posts I have read in this thread go to: "Famous Beagle": "Same thing with 6/8 and 12/8. You could count either one {but one is more accurate}. I would personally call this tune 12/8 before 6/8 simply because the guitar riff lasts for four pulses before it repeats (1 2 3 4 5 6 7 8 9 10 11 12), so it seems logical to me that you would divide the measure there." I have been playing this song since way before most of you were probably even around. The "4/4 with a triplet feel" or "12/8" are more accurate than "6/8" because of where the four measure accents actually lay. How you notate a song only matters that it authentically represents the actual song itself, and sometimes that may differ, as long as the result is the same. 12/8 & 4/4 with triplet accents are essentially the same to the human ear, just notated differently. 6/8 changes the accents to the first beat of the first and third measures, instead of every four measures, with the 6/8 not being the correct meter for this song due to the four chord cycle involved. It is certainly possible to interpret and notate any song/musical piece however you wish, just as long as it is notated in the matter you actually are seeking, as to how others would interpret it. My friends, I always say: "Peace, Love, and Harmony, oh, and Meter too..."