gorgon> The problem with Warriors being a Troops choice for a standard Tyranid list is that they'd compete with Genestealers and Gaunts, two of the most valuable troops types you can field. It's actually a boon that they're in Elites.
Fair enough, but please realize I dont see Genestealers and Gaunts as good choices at all. Genestealers cost as much as marines for 1 T4 5+ save and they cant even shoot. I call them Bolter Food. They cost even more with upgrades and gaunts have LD 4 so when the hivemind is gone they're a waste, most easily dealt with by killing the Hive Mind.
gorgon> it would benefit a Godzilla list...somewhat. The catch there is that those armies don't really use or need the synapse and Genestealers are more efficient rending claw platforms, point for point.
That depends if you play the Carnifex as taking the hive mind checks it's supposed to. Actually 'Zilla 'nids do need hivemind, I'm surprised everytime I watch a game where Tyranid players just ignore the Hivemind rules for Carnifexes. Maybe Genestealers are better for rending claws, but they don't shoot do they?
Ultimately it's kind of a fluffly thing too, even if all your assesments are correct what would it hurt? Imagine, my way someone could make an old school army of all tyranid warriors, like in the Advanced Space Crusade days, but you could be free to take all the gaunts and stealers you want if that's your preference too.
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