>>20072861Alakazam was not overrated in Gen I, where it was one of the best Pokémon (great speed for high crit rate, Psychic type, large movepool). It still sees some use in competitive play, but I haven't heard of anyone who thinks of it as outstanding.
Charizard might be overrated, but its two megas are quite dangerous. Y is often found in doubles where it's a threat to reckon with, and X is one of the best physical sweepers in singles. So, not overrated at all.
Lapras has some niches, but ultimately it sucks, thanks mostly to its ice typing.
tl;dr shitty question