Give warlocks options; maybe the ray-like ones work as spells - and take metamagics.
Maybe the close AoE one is actually like Flame Blade, and makes instead ... a Rahl's Might like staff. Call it Eldritch Glaive, and have it be a weapon - and boostable by weapon things, sneakable, deal glancing blows (THF chain, etc).
For a class that gets wicked boosts to UMD, GH is kinda pointless.If you mean Greater Heroism, that's tentatively slated for Tainted Scholar. It's not a very "Warlocky" thing, but Scholars thirst for knowledge is strong enough to even research "Good" things.
It's not going to feel like a Bard in practice, unless you really just want to be a Crowd Control guy. In that case I suppose you could probably build a CC Warlock that feels something like a CC Bard. If you squint a lot, and don't look at the details, and ignore Warlock's main class feature, Eldritch Blast.
I am glad to hear someone calling Fey weak! Seriously, hasn't come up much, except with regards to Reflex Saves. Except when it's pointed out they get Reflex saves, in which case the usual reply is that Fey is obviously the strongest. [/quote]
How about Favored Enemies? Create vulnerabilities? Extra damage vs helpless?
I still like giving them the prismatics.