MAN-JFK

Are there any suggestions of improvements to MAN-JFK flights, especially regarding the aircraft type?
We are looking at NYC in Autumn '23 and seems that the aircraft type is A333 currently. I know that we shouldn't base flights on aircraft type as these can change, but re UC it is not a good configuration for our family.
We experienced the A350 leisure earlier this year, and like the set up.
So was wondering if we would have to likely travel to LHR if we wanted something similar?
MAN would be preferable due to distance (we are in Liverpool), but would consider travelling to/from LHR for the aircraft and overall UC experience.
Thanks in advance
We are looking at NYC in Autumn '23 and seems that the aircraft type is A333 currently. I know that we shouldn't base flights on aircraft type as these can change, but re UC it is not a good configuration for our family.
We experienced the A350 leisure earlier this year, and like the set up.
So was wondering if we would have to likely travel to LHR if we wanted something similar?
MAN would be preferable due to distance (we are in Liverpool), but would consider travelling to/from LHR for the aircraft and overall UC experience.
Thanks in advance