I would love some enmity reduction on Whm cures. 10% is likely enough, or just do away w/ enmity generation on overcure amounts.
Stoneskin on a shorter cast time, I don't know about instant cast, but shorter.
Really though, cure 3 fixes seem more useful, reworking it altogether so it's a spell that gets some use would be nice.

I of course don't Whm on anything like a regular basis, but the people that Whm for stuff with me comment on most of this.