I've been playing as a helf acid savant /w barb dilly with plans to, at some point, respec the enhancements to water and use the free Fred feat exchange to swap out to the paladin dilly once the extra HP from the class toughness became less of an incentive and saves became more important. Divine wand usage is also nice.
Right now, I'm at level 7. It's the most fun I've ever had with a character, but I'm not sure when to do the swaps.
As far as switching the savant enhancements, my thoughts run:
Level 8 - Pick up ice storm for an AoE, with acid blast still retaining a good bit of power. Also, another point of Charisma adds to the DC on Niac's.
Level 12 - Water II, more spells in general.
Level 18 - Retain the AoE benefits of Acid longer, switch with high-powered Ice spells available.
Don't Do It - Keep Ice as a secondary proficiency, live by 260pt stoneskins and free max-emp acid blasts. See if the devs add more high-level acid spells - I think that was mentioned in one of the spell pass discussions, that new electric and acid high-level elemental damage spells were in the works.
As far as the feat swap, I'm thinking that the 10 extra hit points are becoming irrelevant quickly, but that a bonus to saves and having divine wand usage available would be nice. I'm seeing more failed saves in at-level or above-level content than previously, and a bonus +2 or +3 might not make a huge difference, but would add more survivability than 10hp.
Thanks for any tips in advance.
s.