JJ is more convincing on the preflop, but this is where their advantage ends, there is a 57% probability that an overcard will fall on the flop, and how will you play the post-flop? If the opponent has a pair stronger than yours, you only have 2 outs (a rough calculation, because there are possible streets and flushes on one pocket card).
The pair is ready, but it is more difficult to part with it and this leads to greater relationships with this pair.
With AK, it is easier to fold the re-raise of our c-bet, plus it dominates a large number of hands that can call our raise.
But I would not refuse any of these hands🙂