Like several other posters, my ranking of my Top 3 is more-or-less arbitrary. On any given day, any of them could be my "favorite." I say this to make it clear that my #2 team is fully worthy of the top spot.
#2. Marie Severin and John Severin
I have a confession to make. I was never a big fan of Marie's work, not even her humor work. I didn't hate it or anything, it just didn't float my boat. That indifference led me to commit a grave injustice towards the Mirthful One: I assumed that it was John who was responsible for all the things I liked about their collaboration on Kull the Conqueror. And then, a decade or so ago, I saw some of Ms. Severin's uninked pages for the title and was blown away. All the nuance, all the details of costume and setting I loved so much were all there in her pencils. Brother John added texture and weight and grit but the magnificent world-building was all Marie. Together the sibs produced the best art ever to grace a sword-and-sorcery comic and one of the best art jobs in American comics, period. So here's hoping this makes up, just a little, for dissing a lovely lady and superb storyteller.
I summon the apologia!