Seatguru shows 41A & 41L as desireable due to curvature of plane. Do these seats angle away from their partner seats, and is there any extra shoulder room because of this? Anyone fly in these seats?

Seatguru also discourages the last row two-somes 44AB & 44KL. Does anyone know if the window seats have extra side room, along with the aisle seats because of extra space from missing seat?

... Or will I be happier in my usual rows 20-22 center section aisle?

Cheers