There's been a lot of speculation with Pokemon popularity in latin america, so this info will probably give us a hint:

A popular youtuber has made several "rap" songs about anime and videogame characters and here's the statistics for Pokémon ones:

1 - Charizard rap (nov 2016): 10,904,333
2 - Greninja rap (sept 2016): 10,199,121
3 - Mewtwo rap (aug 2016): 8,500,851
4 - Lucario rap (oct 2016): 4,131, 601
5 - Mimikyu rap (jan 2017): 3,728, 461
6 - Pikachu rap (sep 2016): 3,439, 295
7 - Mew rap (dec 2016): 2,935,247
8 - Infernape rap (mar 2017): 2,630,219
9 - Arceus rap (may 2017): 2:471,066
10 - Rayquaza rap (jun 2017): 2,153,540

Others are 11th - Sceptile, 12th Lugia, 13th Meowth, there's even more afterwards

Thoughts?
> Charizard is still undoubtedly the most popular starter of all time
> Greninja almost hit Zard levels
> Mewtwo still going strong
> Lucario's fade out
> Mimikyu's surprising popularity