As a Gobi and, obviously, a Higgins Mill, owner I can say with certainty that the HM is not nearly as "blobby" as the Gobi. I think inherently any boot from AE that's not on a 65 (or similarly narrow) last is going to have some blobbiness to them. It's sort of the nature of the beast that it's going to have wider lines, as opposed to longer lines. If I had anything even closely resembling camera skills, I'd shoot a photo of them side-by-side so you could see.
FYI, I returned some new Odenwalds specifically to get the HM. In looking at them both, the HM is definitely sleeker, for lack of a better word. Not a ton, but enough to notice.
I agree. I too own the HM, Odenwald and Gobi and I can say that the HM is definitely sleeker than the Odenwald and Gobi.