Even though there are 17 (15 in RBY, 18 in XY) types, some are always going to see more use than others for whatever reasons. What are the ones that you use the least on your in-game teams?
(Note: Only count Fairy if you've played XY.)
Here's mine...
Fighting: I think this one's mostly a side-effect of me preferring RBY/GSC. The type's near-useless in those games, and most of the earlier Gen Fighting Types are kind of "boring" in comparison to later ones like Lucario, IMO. It's telling that the first game where I actively sought out a Fighting Type was in Emerald, where Fighting types are much more useful (all those Dark Types in Hoenn) and considerably less "boring." I loved my adorable little Breloom.
Ice: When nearly every Water Type sans Magikarp can learn Ice Beam, why bother wasting a team slot on a dedicated Ice Type? Surf pretty much mandates that your team have a Water Type, anyways, and Water Types are usually sturdier, have better attacking stats, and have better movepools than Ice Types. Plus, Ice Types are usually rare and don't show up until very late in the game, after you've already encountered a million Water Types. The only Ice Type I've ever used with any regularity was Lapras, but surprise, it's also a Water Type.
Steel: Like Ice Types, they tend to be rare/late encounters (2 out of 5 are trade evolutions in GSC), and the vast majority of them are slow and overly defensive, which makes them harder to use in-game (which is mostly based around offense). Plus, Steel STAB is completely useless (pre-XY) and can easily be covered by other, more common types.
Bug: While I usually pick up an early-game Butterfree in RBY, that's about it as far as Bugs go on my team. Most of them have bad stats, and the ones that don't are usually hard to get and have terrible movepools. Similar to Fighting, Bug was another type that started out kind of "boring" early on, but became better and more interesting in later Gens (notably, Gen 5), which means that the games where Bugs have any use are the ones I don't play.
Rock: Sorry, but it's the most boring type ever, IMO. It has way too many weaknesses for being full of so many slow, "defensive" Pokémon (too many of whom are part-Ground and have horrible Special Defense, which means that they can be one-shotted by Bubble), and its STAB can be more easily covered by better types like Electric, Water, and Ground. I'll usually use Tyranitar (one of the few Rock Types that isn't "boring") whenever I can get a hold of it, but otherwise, my team will be Rock-free.
(Note: Only count Fairy if you've played XY.)
Here's mine...
Fighting: I think this one's mostly a side-effect of me preferring RBY/GSC. The type's near-useless in those games, and most of the earlier Gen Fighting Types are kind of "boring" in comparison to later ones like Lucario, IMO. It's telling that the first game where I actively sought out a Fighting Type was in Emerald, where Fighting types are much more useful (all those Dark Types in Hoenn) and considerably less "boring." I loved my adorable little Breloom.
Ice: When nearly every Water Type sans Magikarp can learn Ice Beam, why bother wasting a team slot on a dedicated Ice Type? Surf pretty much mandates that your team have a Water Type, anyways, and Water Types are usually sturdier, have better attacking stats, and have better movepools than Ice Types. Plus, Ice Types are usually rare and don't show up until very late in the game, after you've already encountered a million Water Types. The only Ice Type I've ever used with any regularity was Lapras, but surprise, it's also a Water Type.
Steel: Like Ice Types, they tend to be rare/late encounters (2 out of 5 are trade evolutions in GSC), and the vast majority of them are slow and overly defensive, which makes them harder to use in-game (which is mostly based around offense). Plus, Steel STAB is completely useless (pre-XY) and can easily be covered by other, more common types.
Bug: While I usually pick up an early-game Butterfree in RBY, that's about it as far as Bugs go on my team. Most of them have bad stats, and the ones that don't are usually hard to get and have terrible movepools. Similar to Fighting, Bug was another type that started out kind of "boring" early on, but became better and more interesting in later Gens (notably, Gen 5), which means that the games where Bugs have any use are the ones I don't play.
Rock: Sorry, but it's the most boring type ever, IMO. It has way too many weaknesses for being full of so many slow, "defensive" Pokémon (too many of whom are part-Ground and have horrible Special Defense, which means that they can be one-shotted by Bubble), and its STAB can be more easily covered by better types like Electric, Water, and Ground. I'll usually use Tyranitar (one of the few Rock Types that isn't "boring") whenever I can get a hold of it, but otherwise, my team will be Rock-free.