The best teacher is experience. AA may be the best hand but it is hardest to play.
It is true that the majority of the time AA wins small or loses big. Go all in preflop and get no callers.... slow play and you give opponents an opportunity to make a hand.
It seems inevitable if I have AA the flop will have K and if I have KK the flop will have A... the pokergods enjoy a good laugh
With any pair so much enters into the process - things I have learned over years of playing that I no longer have to think about...
Position
Size of blinds - size of stack
Players - is the table filled with donkeys that won't fold == EVER??
Patience --- there are some days I have little to none --- that is lethal