I would like an undead race. Yes, I could play a Pale Master or Dark Disciple for curing via Cause spells, but an undead race is much more flexible IMO.
Undead paladin sounds fun to me, or undead ranger ( = skeletal archer) is onother option. Or perhaps an Undead Blightcaster (Druid archetype). Undead alchemist with their Inflict SLA would be awesome.
Just think of the possible racial APs:
Undead immunity I: poison // disease // fear -- chose 1 at tier 1, another at teir 2 and the final one at tier 3.
Undead immunity II: Flesh to stone // Horrid Wilting and similar water-drain attacks // Energy Drain
Undead immunity (or resistance) III: Fire (blackbone) // Cold (Frostbone) // Displacement (Incorporeal) -- only get to choose one?
Lesser death aura
Death aura
Ghoul touch (paralysis)
Level drain (melee attack)
Charm (ranged gaze attack) / Dominate at higher tier
Vampiric touch (as spell)
Negative healing amp
Spectral form (permanent feather fall)
Die hard
Fangs drip venom (poison imbue?)
Tireless Undead: like second wind but for both HP and SP
Raise undead pet: only active for a few seconds after a mob is killed - dispels current pet
Raise undead (hireling): only active for a few seconds after a mob is killed - auto-dismiss current (non-gold) hireling
And the character creation options could let you look like a skeletal / wight / vampire form of a human, a dragonborn, a tiefling etc. With glowing eyes (tiny, small, large) // with empty eye sockets.