I don't think the Men of Sunlight would even really know what Tharbad is. The Lossoth have all of Eriador between them and Tharbad, really, and these ones came from Mount Gundabad. Certainly I don't imagine they have all that much hatred of them, as they won't have been personally affected. If anything they'd serve as a kinda pro-Numenorean/pro-Tharbad voice, since they have direct and profound proof that Numenorean protection is no joke and that living alongside us isn't so bad.
Elrond >>> Ironbark to me. Elrond is going to have some deeply profound shit to say to us relating to death, which is a Big Deal ChoiceTM this turn and thus carries significantly more weight.
Shipbuilding is contingent on both a shipyard and wood, of which we have neither. Source: Cannibalise Ships in the Seafaring section starts with "Having no Shipyard or permanant source of wood, you will need to break down some of the fourteen ships which brought you here (which are not battle-worthy and cannot hold enough supplies to travel far) in order to construct a proper Ship." So not having wood just yet is fine, since we don't seem to have a shipyard yet either though the winning plan had us build one so that might just be an oversight by Telamon. Regardless, we already do have a Ship, and we don't have Supplies to put another one to immediate use yet, so it's still debatable on if we'd actually get that much worth out of it.
Meanwhile, whatever Elrond has to say, probably about death, will probably impact Imrazor less the longer we put it off.
I do see your point, I just prefer hearing what Elrond has to say, because holy shit Elrond.
...Hey, could we do both? Barazir's thing mentions the woods seem to be talking to him and shit, and he seems utterly unafraid of the woods, and as a woodsman he'd probably not be the worst advocate for them. Is it at all plausible that he'd actually be an okay person to talk to Ironbark?