I have been trying both bo6 and the 7 thanks to Xbox Gamepass on Microsoft here is my feelings
I have been trying both as title said I feel more comfortable on bo6 of course 7 is also good but gunplay feels a bit different for me. I think it is quite depends on the person but I am not so much into feturustic stuff. Also being around 90's feel alright to me and the guns are also licensed and feels different then itopic guns. Unfortunately battlepass no longer availeble but they have fixed the armory now, so that is a one thing. I may stay on bo6 until mw4 arrives I hope I dont miss anyting...
And adding some events to bo6 would be really nice since cod title now only supporting bo6 and 7 on the CoD launcher.