I feel like most Hyatt brands are relatively distinguishable from each other and if you blindfolded me and put me in one, I could probably tell which brand it was once inside the door (and inside the room) but without access to the brand name. This applies to all Hyatt brands EXCEPT HR and GH....

I thought GH's were supposed to be more "convention" hotels attached to or near convention centers, etc, yet the (truly gorgeous) GH Playa Del Carmen isn't like that. Similarly, there are many HR's that definitely ARE heavy duty convention hotels, if this is the rule then shouldn't they be GH? Size wise, yes GH's are typically large, but not larger than many similar HR's. They seem to have basically identical brand standards, in-room amenities, etc. In terms of locations, both occupy similar locations and GH's exist in places where HR's don't (odd that NYC/Manhattan lacks a HR but has a GH, so does Playa Del Carmen...) so it's not a "we already have an HR there so let's call it a GH" issue. The ONLY difference I can think of (and this might not be accurate) is that all GH's appear to have clubs, while many HR's don't.

I just don't see any rhyme or reason. Am I missing something?