Sorry for being so late to reply, Kosmos. I lost it among the different threads I was going through, and this one's filling out so quickly (largely mine and Reynhart's doing...). Part of my criticism, as you would probably expect, was due to my own frustrations at certain 'ships having long since sailed' in regards to role homogeneity, but I assure you there is a logic to it as well (or at least so I convince myself); we only have what possibilities the state of the game, and its undermechanics, allow. I'm sure once you math things out, you could find a decent balance for what you want, I just do have to caution you again to do so. There's nothing like a good idea gone sour because it lacked the fine details. Your Healing Stance should be able to basically include trait-like ability enhancements (the only way any job can ever get an enhanced version of a non-job ability, sadly), enough to make them usable. I'd merely caution you from 1) removing the dps oath and 2) removing some manner of decent heal access to the other oaths (e.g. Clemency). As per the math I showed you, Sword Oath is a sizable dps component, and PLD/GLD would need a major revision to its potency to hold its own if Sword Oath was removed. In my signature (PLD fix) I've included the 8 adjustments I personally find most important for PLD, but it takes after the 'Knight' motif more than the 'Paladin' one, leaving heals usable but not really focus-able/specializable (no stance for Cure, instead just mediocre all the time, but at least not crap). Its aimed more at reducing frustrations and increasing general enjoyability than any additional tactical engagement, but I do think it at least retains identity. I haven't fixed Raise because I thought that'd be a bit much. The math is basically done.
Oh, but if GLD's potencies were increased to make up for no Sword Oath, what would you then want to do with that Oath to make it "give and take" still? If no-Oath does competitive dps, we can't really have an extra-dps-ish oath atop that. On the other hand, we already have a damage-sacrificing Oath, such that a +healing for -dmg would overlap a fair bit.