I am back for seat advice on a new to me 787-9, please. Flying with hubby MSY-LHR in mid-June. We eat b/f boarding and our goal once onboard is to sleep/rest as much as possible. Don't usually sit together but try to sit where we can avoid having someone climb across a seat. I grabbed 7A which I think should be fairly quiet and means I don't need to climb over 7B, correct?

Asking for advice on seat for him and welcoming your comments and opinions, please. Here is what is available:

6B which seems like the best option due to mini-cabin location and the fact that no one will climb over him during the night, correct?
10D, 10E & !0F are available. Is there any width or length advantage to 10E? I assume he would need to climb over D & F in that seat?
12F, 12J, 12K available but I see no advantage there
13A, 13B, 13D, 13E, 13F available. How is 13E as an opition? Climbing skills required?

Lastly, my parents flew this route in Jan/Feb and were on the equipment with Club Suites. Is there a good chance that our June flight will have a similar aircraft swap?

Many thanks, as always, for your advice.