Lane HGL -- just try it, you'll thank me later.
Some of the other blends listed might beat HGL in terms of complexity or nuance, but you mention room note being important -- HGL is the only one that gets approval from my wife. She'll let me smoke anything I want, but boy do I have to hear about it. With HGL, she tells me it smells like marshmallows roasting over a campfire or something along those lines.