I'm deciding between 5 chairs which one is better? Suggestions for other chairs are welcome.
https://www.amazon.co.uk/Racing-Reclining-Swivel-Office-Armchair/dp/B01MTXLX5X
https://www.amazon.co.uk/Leather-Executive-Office-Computer-Chair/dp/B00KCH3O7W/ref=sr_1_1?s=kitchen&ie=UTF8&qid=1483898673&sr=1-1&keywords=btm
https://www.amazon.co.uk/dp/B01HID3OD6/ref=wl_it_dp_o_pC_nS_img?_encoding=UTF8&colid=1ZGOO4ZSHK0IV&coliid=I3JLYGR4BTMID9&psc=1
https://www.amazon.co.uk/Carver-Racing-Reclining-Swivel-Armchair/dp/B01MQH4Q0W/ref=pd_lpo_201_tr_t_3?_encoding=UTF8&refRID=AY3V1ZG8D9Q0S6XHWGSD&th=1
https://www.amazon.co.uk/dp/B01N8YK2TX/ref=asc_df_B01N8YK2TX39167797?smid=A2PMGTX81ALFWA&tag=lion0d29-21&linkCode=df0&creative=22218&creativeASIN=B01N8YK2TX
Another quick note What is the difference between the life carver and the £140 btm?
https://www.amazon.co.uk/Racing-Reclining-Swivel-Office-Armchair/dp/B01MTXLX5X
https://www.amazon.co.uk/Leather-Executive-Office-Computer-Chair/dp/B00KCH3O7W/ref=sr_1_1?s=kitchen&ie=UTF8&qid=1483898673&sr=1-1&keywords=btm
https://www.amazon.co.uk/dp/B01HID3OD6/ref=wl_it_dp_o_pC_nS_img?_encoding=UTF8&colid=1ZGOO4ZSHK0IV&coliid=I3JLYGR4BTMID9&psc=1
https://www.amazon.co.uk/Carver-Racing-Reclining-Swivel-Armchair/dp/B01MQH4Q0W/ref=pd_lpo_201_tr_t_3?_encoding=UTF8&refRID=AY3V1ZG8D9Q0S6XHWGSD&th=1
https://www.amazon.co.uk/dp/B01N8YK2TX/ref=asc_df_B01N8YK2TX39167797?smid=A2PMGTX81ALFWA&tag=lion0d29-21&linkCode=df0&creative=22218&creativeASIN=B01N8YK2TX
Another quick note What is the difference between the life carver and the £140 btm?