70's Queen imo, was much edgier,raw,undecided.
mid eighties Queen became too polished for my taste
I think they fooled you, brah. Listen to "Stone Cold Crazy" arguably their "rawest" and "edgiest" song - it seems
edgier, raw, undecided, as you say - and it is arguably the first speed metal song ever recorded.
However, much like all of that stuff, if you listen closely - there's nothing raw or "unpolished" to it. That sound was built upon by some later acts, the NWOBHM, particularly cite glam acts and Queen (as well as the usual suspects, Led Zeppelin) as powerful influences, and that, in turn, led to the entire hair metal scene of the 1980s. Virtually everything audible on any Queen recording was deliberate - Mercury and May, particularly, were extremely meticuluous and did not leave much to chance, even in their early 20s. Deacon and Taylor are in the running for most underrated rhythm section in rock history.