The Renown 18, 10, 12, 14 ...... the Orion 20, 10, 12, 14, 16. I wouldn't get the Renown unless you really wanted an 18" kick. Searching GC, I didn't find any 20" Renowns ...... but several 22's ..... some kits with 3 rack toms and 1 floor.
I'd say ..... first figure out what sizes you want ..... and go from there. I'll agree with Artstar ..... the Orion is a tad high in price (for me, anyways). I mean, sure ..... they were "Flagship" drums at one time ..... and maybe someone who really, really, really wants an Orion kit, will pay that. I wouldn't.
If you just gotta have a 20" bass drum ..... then I'd wait a Renown one to show up used ..... otherwise, I'd grab one of the 22" Renown kits GC has.