From what I recall (I think I just read a few in italian) Kull is a great series.
I'm a sucker for all of Marvel's Howard adaptations. Kull the Conqueror/Destroyer wasn't up to the standard of Conan and the Barry Smith to John Buscema connection, but Kull had a fine lineup too: Severin(s), Ploog, Gil Kane, Ernie Chan. It definitely tailed off towards the end of the run, but the first 20 or so issues (it's been a while since I read the run) are a lot of fun.
I was just pleased to walk into an LCS, search through the bins, and see a whole run of raw high grade bronze age books. Forget the great price, it's just been a long time since I've the pleasure of plucking one issue after another out of the bins, examining each and then adding it happily to a growing pile. I had forgotten what a true pleasure that experience can be. I've bought much more valuable books in the past year, but this run is my favorite acquisition in quite some time.
And even though it's hard to wrap my brain around the thought, these are 40 year old books now!