Artistically I find both hard to parse. Maybe they look better in print? Very busy and without a lot of contrast in the figures to set things more apart. Hard to get a sense of scale in the first one but it is promising (though the figures feel a little weightless).
The alternate one would make a killer van paint for sure but... why are the gods fighting a hydra with glowing eyes? I guess it makes sense if you play Magic?
Yes, I said that about a modern WOTC piece of art. I like them both a lot.
I voted alternate- the weird Blue shading/astral look on the regular cover's Hydra just seems a bit off and clashes hard with the very light background. If the Hydra was colored normally- I'd have a tougher time choosing.
The Alternate cover strikes me as something Gloranthan-like.