>>45371521Back when the base set was initially released even old people who couldn't even pronounce "Pokemon" right knew Charizard was the chase card.
This won't change ever, we're past the point where Charizard is the most popular because he's the most popular.
Seems like Lugia's silent popularity among collectors is starting to get noticed, so that's your best bet for a distant 2nd place.
>>45371613Gengar is a solid choice, he's only a step bellow Blastoise and Venusaur in terms of popularity.