Who takes the trick in All Five (variant of All Fours) if the 10 and Ace are played from the trump suit?
Rank matters during play; points during scoring. So during play the ace is the best and will take the trick, but during scoring it's more important to have collected the 10 than to have collected the ace. This non-alignment of rank and score can make the strategy more interesting - if ace were highest scoring, you could just play the ace and you'd collect all those points for sure, but collecting tons of points off of a lowly ten takes much more skill.