Well as usual your 'best of' list misses a few icons and includes a few which are very dubious indeed.
Where, for instance, are the Koss Portapro? They totally revolutionised portable audio, providing a foldable, lightweight pair of good sounding headphones. They've been around since 1984 and can still be bought today.
Where are the Sennheiser HD414? Yes those small lightweight headphones with the iconic bright yellow foam pads. First seen in 1968. The world's first open backed headphones. They provided a sound with space and airiness no one had heard before from headphones.
And finally, and perhaps controversially, where are the Koss Pro4AA? Released in 1970 for discerning listeners. They were adopted by studios around the world for their detail, neutrality and isolating properties. They also made every other pair of headphones seem flimsy and lightweight. Yes, you can still buy them today.