I've got a ranger who's going to take the companion bond instead of the animal companion. He's going into the lantern bearer prestige so he can kill drow dead, so he's not choosing the animal companion that would quickly be useless. Are there any feats to make the underwhelming companion bond better?
No, not the animal companion. The comapnion bond to share favored enemy, the one no one takes.
It's a little disappointing that there has been literally no support for that choce, ever.