Really? To be honest I didn't even try to upgrade any armor because Drangleic just seems so much more powerful. I didn't invest my twinkling titanites either though.
Drangelic is near useless except at the beginning. Upgrading armor is much better. A fully (+10) upgraded armor has twice the stats it has unupgraded. I have a normal upgraded armor that has ~300 in the physical defenses, getting 150+ is simple.