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Its circumstantial imo.
Some pokemon in gen one and two were over animated, it suits some of them.
Some of the pokemon in 3-5 could use a little more detail, particularly in four imo (a side from magmortar and electivire, they need to be completely re-redone..)
For the most part, especially in gen 5, they could tone down all of the stupid little things hanging off of pokemon, (pignite emboar)