Alright, so in starting a challenge where you have to list your favorite Pokemon of each type, without skipping any. If the Pokemon is dual type, only the first type counts. For example, bulbasaur can not be your favorite poison type, but it can be your favorite grass type. Tag as many people as you want when you're done. The types are:
Dark
Fairy
Psychic
Fire
Water
Grass
Electric
Ghost
Flying
Rock
Ground
Ice
Steel
Normal
Fighting
Bug
Poison
Dragon

Let's start!

1. Dark.
I love a lot of dark types, but I have to give the title of favorite to my favorite Pokemon of all time, Absol.

2. Psychic.
Got to give this to Gothitelle, just because I use it all the time in competitive.  (Also, get it?  Competive? Gothitelle?). I also love the design.

3. Ghost.
My favorite ghost type will be banette.  This was debated between Sableye, cofagrigus, and some other ghost types, but banette is definitely my favorite of these.

4. Dragon.
This spot goes to Dragonair, because I can.

5. Fire.
This was my most difficult spot choice yet, but I choose you, ninetales!  One of the main reasons this one was difficult was that I really love flareon, litten, vulpix, and braixen.

6. Grass.
Roserade has got to be my favorite grass type, but I also really like lilligant and leafeon.

7. Water.
Vaporeon, closely followed by milotic and swanna.

8. Poison.
Dragalge.  I really like dragalge.

9. Fairy.

10. Ice.
Froslass.  Her design and backstory are just amazing. 

11. Steel.
Mawile. Design and what's it's based on, just love it.

12. Rock.
Amaura. It's just so cute I want to hug it!

13. Ground.
Marowak. Just. Marowak.

14. Flying.
Noivern. I love that it's part dragon type, and I love it's design.

15. Electric.
Luxray. Closely followed by jolteon though.

16. Bug.
Vivillon. Patterns and stuff.

17. Fighting.
Lucario, because lucario.

18. Normal.
Eevee.  Pretty obvious why. Enough said.

I tag:
BreKittyKatz
Celestia2543
Heart_Eater_Jessie
blueheavencat
secretylpie
XxBadgerfangxX
NightmareUmbreon
Cheesegirl92828
Candy_Peaches