There’s only 2.5 stamina morphs from the DK class (whip morph counting as half). The rest is magicka. With the dark elf, you get more stamina than the orc but you also a hefty magicka bonus which should help with sustain. Both have the same weapon bonus.
Orcs look cooler. They have that health passive which can be more useful in some situations. Depends what you are going to do.
Dark Elves are one trick ponies. No sustain, just damage.
Don’t they have better sustain than orcs though? More stamina on racial passive and you get hella magicka. Dragonknight skills are mostly magicka unfortunately
I started a couple of dunmer but worried that the passives were wasted on boosting two attributes. Sorry, I didn't explain myself very well again - by sustain I meant something renewing. Orc renews health. Breton has magicka recovery etc. Sustain may not be needed at the moment but it makes me feel more comfortable.