Are there more than Four Kings, or is it that the four simply respawn until their combined HP bar is fully depleted? :suspect:
As
for the Poll I'd have to say Asylum/Stray/Firesage are my least
favorite, simply because there is not a lot to seperate one from the
other.
They just continue to respawn, so you can end up fighting 5 or 6 in total if you don't deal enough damage, yes.