Orcs: Fast Hd and Solid Wb. Wargs aren't well-represented in base DBA3. I'd use Cm as the model, but without the QK vs Kn, and treating all BGo and RGo as GGo for movement and combat. Oh and they should pursue.
I find that Fast Wb, Kn, LH are all good options for wargs, depending on how one understands them.
Whether Orcs should be Fast or Solid Wb is an interesting question. I can think of arguments for both.
As for Hd, I think they also could be either Fast or Solid, depending on what kind of orcs (or goblins?) they are to represent. Both would work for me.
Thank you for the offer - I will probably have another look at D3H2 and comment on it in some detail. I do like the idea of it very much. And I understand that it is a lot of work (which I have been too lazy to do myself). So take my criticism with some salt, please.
I don't think "solid" spear represents Hobbits well at all as they were very good in mixed terrain. I
Not quite sure on what accounts we have about Hobbit Spears.
In my imagination, they are OK as Solid Sp. Solid Ax would be another option. Fast Pk might be worth a thought.
Hobbits are probably not a very good point of reference anyway, since they are notoriously hard to get "right" (whatever that is) in almost any set of rules that I know of.
I do like how my Elves work - even though they do not have Sp at all - and the possibility to actually play games with them motivated me to finish that army, including decent basing.
I also re-did huge parts of my Undead, which look much better now.
Orcs might be next in line. Not yet sure what flavour of Orcs I want, but I think I tend towards a Wb-ish interpretation of Orcs. Solid Wb might actually work quite well for Orcs.
One trouble re Hobbits is that at least in LOTR, they did not fight any "army level" battles (they did send a contingent in a second age battle but as it never returned we have no details re how it fought except its demise). But one key element of Hobbits seems to be terrain conforming so it seems only natural to go with a "loose order" option. You can have Fast Spears in D3H2 and these seems an easy and viable option. Missile troops should also be a specialty.
Again Flying rules in D3H2 work well and are derived from HOTT which while having its own issues does work reasonable well re Flyers. TomT