1. Freeze - Though it was largely just for the BLM's entertainment, I've now seen even T7's 4-stack Renaud done via Freeze, and it still has a decent place in AoE rotations (though its sheer mana cost often clips it short of being as useful as it likely should be there).
2. Thunder - I actually like having all three thunders, and use them depending on the time until mana ticks, remaining enemy health, and expected time until Thundercloud. It's a bit gamble-ish, but I like having those options, especially when keeping track of would-be Umbral tick timings while in Astral.
3. I could go for a slight buff, especially since it seems that it was only reduced in order to balance PvP potential at unintended cost to PvE. That said, I'd like anything further than a slight buff to be made only in mind of BLM's upcoming single-target dps revisions.
4. If you gave Bane an unlimited spread, SMN would be the only class to literally do caster ST dps x # of enemies, which would be outright insane... At present you could still go with DoTing up one enemy, spreading, attack once (probably Miasma II), DoT up another, and spread again for 8 enemies affected. I could possibly go for having no Bane CD though, allowing you to DoT up a whole batch of enemies at once (4/7/10), but those who occasionally double-key instant off-GCD casts might well hate that. I could also go with the refresh chance being increased when the number of spread targets are reduced.
5. Sacred Soil - The mitigation from this is often greater than what Lustrate can provide, and so depending on the boss and its current rotation it will often be highest on my Aetherflow priority unless I suspect I'm going to need 'oh shit' healing. 10% is already a lot for some fights, such as T1, T4, T5, T7 if you can fit both tanks into it during adds, and T8 and T9. I feel like I want it to be more, but... it wouldn't take much to make fights feel either dependent on it (especially in AoE situations) or for the ability to feel otherwise overpowered (worth far more than Lustrate during intensive healing/damage taken phases). To take the other hand, the Succor proc... I'd like to see this guaranteed (procs rarely come when wanted), but the more free mana it can be predictably used for, the more it out-values Energy Drain. Maybe a guaranteed half-cost Succor, maybe with a even longer buff time as not to overly change when the ability is used?
6. PoM - Already a pretty powerful 'oh shit' CD, almost as good as Benediction. It really helps with solo-healing T4 and the like, allowing you to weave Regens in during intensive healing between Cure IIs, or else to use regular Cures and freeheals in place of a Cure II spam. It could probably drop down to a 3-minute CD without being two overpowered, or chip off an extra 10% of casting time, or have another 2-3 seconds' duration, but I don't find it useless.
6. Sword Oath - I like getting Sword Oath first. Since most of my healers around that level didn't know how to dps worth a damn anyways, it kept things from going quite so slow. If you sleep everything you still end up using it more often than Shield Oath during trash in CC and SV. If you're getting aggro issues from the lack of Shield Oath between level 30 and 40, you or your dps are doing something wrong.