Well - if you ask me (you didn't, but what the Heck) - Bob Oksner was my favorite Swan inker. His inking really brought out something in Swan's pencils, particularly in Superman. It's like Supes is radiating with power. That is easily my favorite Superman.
But - Swanderson is a good second place.
Oksner is my second-favourite inker for Swan, or maybe ties for second place with Klein.... But, then, Oksner's art is beautiful with or without Swan.