Currently the Tailoring Embroideries have no point value for me.
While I can't make a case that any of them are the best in slot for tanking, some consideration needs to be given. I am over the crit cap and do not desire more Defense. I've got around 25k armor and don't desire 225 more. The Agility for dodge, a tiny bit of armor and some crit might be nice. I find that the Swordguard Embroidery is a good fit for me. The 400 extra AP helps generate more threat and it has a 25% uptime. A little extra DPS and a bit more threat can't possibly be a bad thing. I don't understand why a cheap, easy, enchant should be valued at zero, while other enchants that would have minimal impact are valued so highly.