J-
I almost exclusively use Kingsford in my WSM. I really like the consistency that I get, and I just don't have a problem with ash buildup that a lot of people talk about. I have also never noticed any off flavors or aromas from using Kingsford (yes, I use the MM, so I have meat in with charcoal that isn't ashed over.) Also, I use lump exclusively in my ceramic grill/smoker, and I do not notice any flavor differences between meats smoked over lump vs kingsford (I use the lump in my ceramic because it is easier to control the variances in temp that lump tends to have due to differences in size/shape, etc.)
Having said all that, you should give it a try anyway to see if YOU have a preference. I try almost every new idea once, and sometimes twice!
HTH,
Rich G.