Travelling with a 3 year old - UC or PE?

Hi all, we're traveling transatlantic with our 3 year old son this summer, and have plenty of miles to get UC seats, and there is availability, but... wonder if PE isn't better, as you can't really leave a 3 yr old alone in a pod, can you
Parental control is much better done in side by side PE seats, so that's what I have on reserve, but maybe this is a mistake. Anyone know from experience what's the best way? Maybe even EC with the lift up armrests is even better than all other options, god help us! (I'm FC Gold so changing miles bookings is easy, if available)
Thanks!
Parental control is much better done in side by side PE seats, so that's what I have on reserve, but maybe this is a mistake. Anyone know from experience what's the best way? Maybe even EC with the lift up armrests is even better than all other options, god help us! (I'm FC Gold so changing miles bookings is easy, if available)
Thanks!