Pokemon

Gotta Rank ’Em All: Measuring Popularity Concentration Within Pokémon Types

Disclaimer: This is a small, slightly outdated study (data collected in 2022 from just 153 participants), so there are plenty of biases — especially the limited sample size. Still, it gives an interesting glimpse into how concentrated or dispersed people’s favorite Pokémon are within each type.

To measure how spread out the preferences are for each type, I used the Gini index, which is normally used to measure income inequality — but here, it shows how much people agree (or disagree) on their favorite Pokémon within each type.

  • A Gini index near 0 means the votes were evenly spread across many Pokémon (no clear favorite).
  • A Gini index near 1 means that a few Pokémon got most of the votes, while the rest were rarely picked.

To make this clearer, I’ve included a graph showing:

  • The 45° diagonal line = perfect equality (everyone votes differently).
  • The Lorenz curves for three types: Bug, Rock, and Ghost.

The bigger the area between the Lorenz curve and the diagonal line, the more concentrated the preferences are.

Why just looking at the “most voted” can be misleading

Take Gengar: it got 30 votes, which is more than any other top-voted Pokémon in other types. At first glance, you might think:

But that would be misleading.

Why? Because Ghost type has way fewer Pokémon than, say, Water or Flying. So naturally, people are more likely to converge on a few options.

If a Pokemon had 30 votes in a type with a lot of Pokémon (like Water), that would indicate a much stronger concentration.

That’s why it’s useful to use tools like the Gini index and Lorenz curves — they adjust for how many Pokémon exist in each type, and show whether the dominance of a single Pokémon is statistically meaningful, or just a side effect of a short list.

TL;DR:

  • All types show a high concentration of preferences.
  • Bug and Psychic types have the most concentrated preferences.
  • Rock is the most balanced
  • Gengar got the most votes overall, but don’t be fooled — it doesn’t automatically mean Ghost is the most skewed type.
  • The most "normie" pick in one of those "favourite pokemon for each type" images is Scizor

Grass

  • Sceptile – 19 votes (12.42%)
  • Torterra – 12 votes (7.84%)
  • Serperior – 10 votes (6.54%)
  • Venusaur – 8 votes (5.23%)
  • Lilligant – 6 votes (3.92%)

Fire

  • Charizard – 13 votes (8.50%)
  • Typhlosion – 12 votes (7.84%)
  • Chandelure – 11 votes (7.19%)
  • Infernape – 9 votes (5.88%)
  • Victini – 8 votes (5.23%)

Water

  • Greninja – 14 votes (9.15%)
  • Feraligatr – 10 votes (6.54%)
  • Swampert – 9 votes (5.88%)
  • Milotic – 7 votes (4.58%)
  • Azumarill – 6 votes (3.92%)

Normal

  • Snorlax – 15 votes (9.80%)
  • Porygon-Z – 10 votes (6.54%)
  • Eevee – 8 votes (5.23%)
  • Blissey – 4 votes (2.61%)
  • Slaking – 4 votes (2.61%)

Electric

  • Luxray – 14 votes (9.15%)
  • Ampharos – 12 votes (7.84%)
  • Raikou – 10 votes (6.54%)
  • Galvantula – 9 votes (5.88%)
  • Magnezone – 8 votes (5.23%)

Psychic

  • Mewtwo – 15 votes (9.80%)
  • Gardevoir – 12 votes (7.84%)
  • Metagross – 9 votes (5.88%)
  • Espeon – 8 votes (5.23%)
  • Lugia – 7 votes (4.58%)

Fighting

  • Lucario – 22 votes (14.38%)
  • Heracross – 15 votes (9.80%)
  • Breloom – 9 votes (5.88%)
  • Primeape – 7 votes (4.58%)
  • Gallade – 7 votes (4.58%)

Rock

  • Tyranitar – 23 votes (15.03%)
  • Tyrantrum – 10 votes (6.54%)
  • Gigalith – 7 votes (4.58%)
  • Lycanroc-Dusk – 7 votes (4.58%)
  • Cradily – 6 votes (3.92%)

Ground

  • Krookodile – 13 votes (8.50%)
  • Garchomp – 12 votes (7.84%)
  • Flygon – 12 votes (7.84%)
  • Gliscor – 10 votes (6.54%)
  • Nidoking – 10 votes (6.54%)

Flying

  • Staraptor – 11 votes (7.19%)
  • Corviknight – 10 votes (6.54%)
  • Honchkrow – 9 votes (5.88%)
  • Gliscor – 8 votes (5.23%)
  • Lugia – 6 votes (3.92%)

Bug

  • Scizor – 18 votes (11.76%)
  • Heracross – 17 votes (11.11%)
  • Volcarona – 12 votes (7.84%)
  • Scyther – 10 votes (6.54%)
  • Shedinja – 8 votes (5.23%)

Poison

  • Crobat – 17 votes (11.11%)
  • Nidoking – 11 votes (7.19%)
  • Drapion – 9 votes (5.88%)
  • Toxtricity – 7 votes (4.58%)
  • Muk-A – 6 votes (3.92%)

Dark

  • Umbreon – 14 votes (9.15%)
  • Absol – 13 votes (8.50%)
  • Krookodile – 10 votes (6.54%)
  • Darkrai – 9 votes (5.88%)
  • Weavile – 8 votes (5.23%)

Ghost

  • Gengar – 30 votes (19.61%)
  • Chandelure – 10 votes (6.54%)
  • Decidueye – 7 votes (4.58%)
  • Froslass – 6 votes (3.92%)
  • Giratina – 6 votes (3.92%)

Ice

  • Lapras – 21 votes (13.73%)
  • Weavile – 16 votes (10.46%)
  • Ninetales-A – 13 votes (8.50%)
  • Glaceon – 12 votes (7.84%)
  • Sneasel – 12 votes (7.84%)

Steel

  • Metagross – 15 votes (9.80%)
  • Aegislash – 14 votes (9.15%)
  • Scizor – 11 votes (7.19%)
  • Aggron – 8 votes (5.23%)
  • Skarmory – 7 votes (4.58%)

Dragon

  • Garchomp – 14 votes (9.15%)
  • Dragonite – 12 votes (7.84%)
  • Noivern – 12 votes (7.84%)
  • Altaria – 10 votes (6.54%)
  • Hydreigon – 9 votes (5.88%)

Fairy

  • Sylveon – 22 votes (14.38%)
  • Gardevoir – 13 votes (8.50%)
  • Togekiss – 11 votes (7.19%)
  • Mimikyu – 11 votes (7.19%)
  • Grimmsnarl – 10 votes (6.54%)

by GNAAAAAAAAAAAAAAAAAA

3 Comments

  1. TheOwlsWillRiseAgain

    Interesting, if a little unreliable… I like that Rock, Fairy and Bug, three of the consistently least popular types, have three completely different scores. I would’ve thought all three would be high to reflect the relatively few ‘standout’ Pokemon that make a type more popular. Neat little study.

  2. Hmmm.. very fascinating indeed… (I have no idea how to interpret this data or what it’s trying to tell me lol).

  3. Very interesting to look at, appreciate it. Would love to see this with a larger sample size.

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