If both have taken the Attack and Defense skills, the damage is very close; for one archangel it might even be identical. Otherwise, Craig's is slightly higher. But Defense (armor) also applies to ranged combat. This specific example shows that Tazar's specialty will be better at high levels. If Craig doesn't have Defense, but Tazar has Attack, then Craig hits harder.

Don't confuse skills with parameters; they have different multipliers when calculating damage. For the parameter coefficient, the difference between the attacker's attack and the defender's defense is important. In your example, this difference is zero and no one gets bonuses.
The Attack (offense) skill is more effective for raw damage than Defense (armor). But don't forget that in many key battles like the Dragon Utopia, you are the one who takes the first hit, not the guards. Plus, it depends on which troops you are playing. For example, for Swamp, it is specifically Defense that allows you to avoid losing wyverns in battles during the 1st week; they often have only 10hp left (or even less), but they survive. But for a Barbarian creeping with goblins, Attack is more important, because they can't afford to take a hit or they'll die instantly. An opinion was already expressed here that the skills are roughly equal, depending on the situation. And you should take both.

. But don't forget that in many key battles like the Dragon Utopia, you are the one who takes the first hit, not the guards. Plus, it depends on which troops you are playing. For example, for Swamp, it is specifically Defense that allows you to avoid losing wyverns in battles during the 1st week; they often have only 10hp left (or even less), but they survive. But for a Barbarian creeping with goblins, Attack is more important, because they can't afford to take a hit or they'll die instantly. An opinion was already expressed here that the skills are roughly equal, depending on the situation. And you should take both.