The older I become the less interest I have in seeing human-like aliens in sci-fi/space fantasy/space opera/whatever. What's the point? Why not have these races be "removed" humans and save yourself make-up and special effects time? Sometimes it's necessary and works, as in Mass Effect.
In other words, yes, I would prefer Thrawn be human, as well as this Inquisitor fellow. For one because aliens are usually pointless, and second because of the Empire's standards as darklordoftech addressed.