Originally Posted by
jphripjah
3. Three seats in the 4 seat middle section of plane, but stagger so we take the two aisle seats, something like 36DEG, leaving middle F seat open, thinking it's unlikely the airline assigns that unless plane is full, and if they do assign it, I can just switch with that passenger and give them our second aisle seat, so we'd be in same situation as option 2, above.
Don't do this. It's similar to two passengers taking aisle and window in a block of three hoping the middle remains empty which is pure and simple selfishness as discussed many times here on flyertalk.