I grew Nirvana Northern Lights this past summer and it had ZERO odor.
As for mold resistance, I'd say average. I pulled mine about a week early on Sept 30 (I think) because I was starting to notice a little mold. The weather the previous few days was a wash out and they were calling for rain every day the following week, so I figured I'd pull early to be safe. Whether it was for the best or not, I dunno.
On a side note, for next year I'm going to stick with strains that finish early. Temperature wise, I'm good until at least mid/late October, but we have very wet fall weather here so to me it's not worth it. Might try a few sativa leaning hybrids, but for the most part I'm going to run strains that finish first week of October at the latest. Not saying you need to do the same thing, it's just one idea I have to beat the mold before it starts.