If you want to count brass models, then every NH AC electric class has been sold in HO scale except for the two EY-3's, AFAIK. EY-2a 0215 (the oddball) and the 5 experimentals (all singular oddballs) have not been made available, either. So of the NH's total AC loco fleet of 189 units, just 8 of them haven't been available for purchase in HO scale.
For 20th Century steam, Class A (4-4-0), H-1 (4-4-2), I-1 (4-6-2), I-3 (4-6-2), R-2 (4-8-2), U-3 (0-6-0T), and F-5 (2-8-0) are about the only "modern" NH steam classes that have not been made in HO scale. The F-5 is technically done by Bachmann (it's a 2-8-0 with an F-5 number on it), but it's their generic type just painted in NH. Of the lot, the I-1 and the R-2 are probably the most deserving of having something come out due to their numbers (32 I-1's) or to their mainline use (R-2's).
Getting back on topic (sorry, Jason), I would prefer the FB-2 in McGinnis 1st (yes, I know...blasphemy!), followed by #13 Pullman, then Alpert. I would like, of course, all three, but McGinnis is the most colorful, and could MU with either the unrebuilt FA's (as in the 1950's) or with the rest of the roadswitcher fleet (in the 1960's). If they were green, they'd only MU with the original FA-1/FB-1's (except for #469, which was very ratty looking by the time it could MU with the roadswitchers). If they were Alpert, they'd only MU with the roadswitchers and Alpert (rebuilt) FA-1/FB-1's.
So I'll take the McGinnis scheme FB-2 first.
Last edited by Paul Cutler III
on June 2nd, 2016, 1:32 pm, edited 1 time in total.