
Originally Posted by
Caprice
Of your two choices I would pick pure Cleric but that may be a personal bias. I was running a Cleric 18/FvS 2 build (the reverse of your stated) a few months ago and decided that I would have rather stayed pure Cleric; SP is somewhat of a concern but I felt that the wider variety of spells from the Divine Disciple capstone would have made me stronger overall. I ended up preferring Radiant Servant for my tier 5 since the survivability increase was important to how I was playing, but I did sacrifice DPS for it compared to a more nuking focused version. The FvS is better for Blade Barrier kiting but that's not what you've asked for (although maybe you'd prefer it).
I am thinking that the min-max Light nuker is a Cleric 15 / Favored Soul 5, heavily invested into the Light side of Divine Disciple but taking the Angel of Vengeance tier 5 enhancements. Cleric gets more Light spells than Favored Soul after spending points in Divine Discple, and the SLAs are a major perk and SP savings - the free metamagic use on SLAs compensates for the SP pool size difference between the classes. Many Light spells have a fairly low maximum caster level (MCL 10 or 15) so you aren't losing too much by splashing, especially since FvS grants more CL/MCL bonuses than Cleric (+3 for tier 5 Angel of Vengeance vs +1 for Divine Disciple) so several bread & butter nukes are actually better on the 15/5 than on a pure Cleric. You keep level 8 spells (& the commensurate Heightened DCs are only -1 DC), get the flexible spell list of a Cleric, can combine the spellpower and critical enhancements from the two classes, get FvS temporary spell points on critical casts (FvS2), and your Shield of Condemnation (FvS3) can stack to up to +50% Light damage done to enemies that hit you, which is a solid DPS boost for when you most need it (i.e. bosses & champions) if you can survive the hits. But maybe I am overlooking something that would torpedo that idea.