What are important features in a listening chair

I have an antique wicker chair with a comfortable cotton cushion and a small pillow for lower back support. Absolutely perfect for me.

My mother works for Knoll so I am lucky enough to have both a Barcelona chair as well as a Womb chair. I prefer the Womb because of the way the fabric catches the reflections around my head. The Barcelona is no slouch either, but nothing beats the comfort that the Womb offers.

I would say that comfort would be THE most important aspect for a chair you plan on spending hours in. Also consider the way the fabric interacts with the imaging and reflections. 

I sit on the floor.
Thats how I have been listening since 1958 when my dad used to play them old 78s. I am 71 now, still sitting on the floor.

gtechaudio60 nailed it. At least in the budget category. I had a very similar version of this. Light weight. Space-efficient. Supremely comfortable. Not only comfortable, but supports my head just about perfectly without coming up behind the ears. Rendering, needless to say, the irrelevant foam commenter irrelevant. Again.  https://www.ikea.com/us/en/catalog/products/S99903929/

At the top of the cost no object category is the Eames. https://store.hermanmiller.com/living/lounge-chairs-and-ottomans/eames-lounge-chair-and-ottoman/1000...
But there's a hundred out there just like it, everything from $100 crap all the way up to better than Eames just minus the price tag. My fave is the Ekornes Stressless with Ottoman. 

I always thought this one version of the Eames looked cool:https://losangeles.craigslist.org/lac/fud/d/aluminum-aviation-eames-lounge-chair/6880860006.html

All the best,
Nonoise