They all have cons that make it hard to pick a winner. Would pick the left one of those 3 tho.

Right one has bad arm rests and a weird extruded platform that makes getting up harder than the other 2.

Middle one has basically no arm rests and back support. Would prolly work better as a barstool than a living room chair.

Left one seems the best but the sharp edges are gonna drive into your legs over time, making prolonged sitting sessions uncomfortable.