Agree with Jlambrick. No two records sound alike in vinyl--there can be significant differences between copies of their 1970s work. Atlantic records was not known from "quality" vinyl during the period. British copies generally sound better than the domestic copies of the earliest albums (1 to 3). US copies were great after 1974. Their popularity caused the plants to run overtime to meet initial demand so production was varied. I have heard nice copies of the original work (the really great ones smoke) and I would agree that II, IV and Physical Graffiti have moments of master tape quality on the best copies.
Most of the re-issues play to the middle ranges (guitar and vox) although Classic did a great job with II.
IMHO: Very hard to collect--most vintage records are pretty beat up from overuse. Many lack solid bass or quiet surface noise that usually drives the best copies. You may wish to wait to the reissues coming in the Fall.