Peak 70s Aerosmith: What was their absolute best era?

Everyone talks about the massive 90s comeback or the Armageddon soundtrack, but early 70s Aerosmith out of Boston was entirely different. They were gritty, unpolished, and arguably the most dangerous rock band in America at the time. Look at any live shot from the 'Toys in the Attic' or 'Rocks' era—it's pure chaos. Are we in agreement that 1975-1976 was their absolute creative peak, or does someone want to make a serious argument for the late 80s 'Pump' era?