In my opinion the two can't be compared. For starters Connolly has more than 1 point in his last 4 games against Mayo.
But the main point is, while Mayo's best player is doing everything in and out of the rule book to stop Dermo, Dublin have still managed 8 goals against Mayo in the last 4 championship games.
They may stifle Connolly but it's leaving gaps all over the place for others to exploit. Dublin aren't conceding anything like that because it's not taking the same effort to stop AOS.
It's just my observation that they need a complete rethink in their forwards. AOS isn't a forward