Wow. I had to do a double-take to see what's different in the new Plate F boxcar release (a subtle difference in the rib sizes...) The gondola samples look great - the NSC gon is definitely from the same factory as the Otter Valley scrap gons (which are very well done). I'm not aware that Aurora has done the 52' gon in HO yet, have they? The samples look excellent though.
At some point I am literally going to beg these manufacturers to make it stop for a while so I can catch my breath. Among the newly tooled releases I have purchased in quantity recently, in no particular order:
* Aurora Plate F boxes
* MTL plate F boxes
* MTL 60' flats
* OVR scrap gons
* Athearn acid tanks
* ST Trinity reefers
* NARC NSC 5431 hoppers
* IM Trinity 3281 hoppers
* Atlas Trinity 3230 hoppers
* Tangent PS 4750 hoppers
* Rapido NSC centerbeams
or will purchase soon:
* Rapido Greenbrier reefers
* More Rapido centerbeams
* Aurora 50' boxes
* Aurora NSC gons
* Aurora Greenbrier gons
* ST Trinity Plate F boxes
* ST Greenbrier 3250 hoppers
* Atlas Plate F single-door boxes
* Atlas "centre partition" cars
* Kato Greenbrier tanks (unless they suck)
...and I'm probably forgetting some.

I don't even bother keeping a top-5 list any more. The only thing on it is
any 3-unit articulated well cars besides the Kato set.