Okay, you're right: I'm sorry, I am an animist. But I wonder what you call someone who believes in ALL pantheons? Polytheists believe in MANY gods, right?
The closest I could find is henotheism. The worship of one god while accepting the existence of others that may or may not be worthy of praise. Though I don't think it quite accurately describes you. Let me ask you something. You say you believe in ALL patheons. Do you actually worship them all or do you simply think they exist, because I find the former somehow impossible unless you worship them collectively as one being.
Oh well. I contend we all make up our own personal gods anyways and only fool ourselves into thinking we worship the same god(s) as another person when it's convenient. When it's not convenient, it's funny how easy it is to say that person is worshipping a false god.
I recognize their existence. And yes, the whole "worship all pantheons" idea WOULD be almost impossible, unless you were going to worship them equally but for different areas of your life. Oh, and you put an "i" in "unless". Just wanted to correct your grammar (not that I do'nt make those mistakes too: I just want to be as correct as possible). Of course, one COULD accept the notion that the deities have expressed themselves in many aspects, and that, essentially, ALL pantheons DO exist! On the other hand maybe we should accept the Hindu concept of many universes, with their own deities, and those deities are found in mythoses from Earth and elsewhere. And I, as hard as it might be to digest this, believe in a combanation of one, more or even ALL (if that is possible) those explanations! Maybe, the multiple-universes=multiple-pantheons will help with these questions!
The only way I can see that working is some form of monolatry where you periodically single out a god to worship exclusively depending on the situation. Still I think some gods wouldn't be too please having to share your devotion with other gods, especially from a totally different patheon. And if you believe ALL Gods exists and worship them all, then you must assume the God of the Abrahamic Faiths exists and he definitely doesn't like other gods getting any praise besides him. I don't know but it just seems you're worshipping all the patheons as a novelty or just to cover all your bases should some of them actually turn out to exist. It's your thing though. It's just not the least bit impressive.
And besides I doubt all gods deserve any worship even if they did exists. The problem I have with pagan religions is that their gods still retain human flaws, like selfishness and unrestrainedness, that only get intensified by their superhuman powers. In most cases they're just spoiled, bratty superhumans with special powers and limited immortality. Very rarely does any pantheon have gods that are worthy of any praise. Even though I don't believe the Abrahamic God exists, so far he's the only god that I've found that genuinely has mankind's best interest in mind. Very few pagan gods come anywhere close. It just seems to me people in this age turn to paganism because they feel gypped by monotheism and look for more obscure gods that are a little more down to their human level.