Who was in the Host of the 'Valar'?

[Aiwendil]

Raynor wrote:

There is a similar statement in Myths Transformed

Yes, this is another good piece of evidence. The UT quote is still important, though, in that there the change Fionwe > Eonwe has already taken place, indicating that even after the character ceased to be Manwe's son and became his herald instead, it was still deemed sensible for him to be put in command of the host of the Valar. There was some discussion of this point in the New Silmarillion project forum, I believe, if anyone wants to take a look.