When wearing items with fortify archery damage, the amount shown on the weapon changes according to how much fortify is in effect. But not the actual calculated damage, since that changes according to which arrow is used, skill, sneak status, perks etc.

However, wearing items with fortify onehanded (or twohanded, I suppose) the weapon stats all remain the same. And the console command player.getav meleedamage just gives zero, no matter what I'm wearing or wielding. Anyone know how to calculate this? I'm trying to pick a new blade, since my archery is nearly maxed and I finally ditched the last quest weapon I had to carry around.

Silly me. Fortify 1-hand effects *do* show - when using other than daggers. I guess the 15x backstab bonus was considered just too much and they gimped it.