On the companions, I'm confident Larian will give us some better variety than "Funny Bearded Mage, Hungry Vamp Lad and Scowly Sharran Lady." I know next to nothing about the Gith warrior.
These are just the very first ones we've seen. I don't take particular issue with any but Shadowheart, and purely from a personal perspective - saying whether they're well made just yet is getting the cart before the horse considering we're only just coming up to Early Access.
Back on the topic on Elves specifically, someone above mentioned they're "LE in practice." I can consider that true for certain members, but -yes- they do generally start as Chaotic Good. You don't find the typical inhabitants of Elven villages chanting about scouring out an entire landscape with a High Magic Ritual just to get a few lads they're not fond of. As a race they've made some hugely mistaken decisions that lead to absolute tragedy, but they remain a primarily Good aligned people as far as I'm aware.