>>20653332Choices by default suck! Look at Hydregion. He'd almost be better served as a Death Ghidorah, but of course at a certain point if a Pokémon too closely resembles a Godzilla kaiju, then you have a GameFreak/Toho legal brawl and no one wants that.
Default Gigan choices are Armaldo, Garchomp, and back in the day Scyther, and they suck even more than Sandslash as Anguirus does. Nothing captures the insanity of cyborg death chicken
but I think these days Mega Garchomp is the best we've got.