interesting point. but Heinlein pwns them both.

even if you read nothing more of The Puppet Masters than the first page, that's okay.

"Were they truly intelligent? (...) When they controlled animals, they were more than animals (...) But one thing I do know, is that if they were not intelligent, and we ever encounter anything which is, I know who will lose. You. Me. The so-called human race."

personally, I think the Peace* were the prior masters of the Goa'uld.

* = name derived from a scene in the movie Robert Heinlein's The Puppet Masters.