I like both fire and water type They both have really good moves. If i had to choose a third it would probally be phsychic because alakazam is a beast.!
Dude, ghost types definitely, my Haunter was the greatest pokemon ever made, the only problem is psychic pokemon (DAMN YOU ELITE FOUR), otherwise the moves they have at their disposal are just overkill, just insane crazy stuff, curse was my fave.
My favorite type is the Ice type. Not because Ice Pokemon are strong but because they just look so nice I don't really know what it is that makes them look nice though. :S
Dragon has to be the best type because of its diversity and how many moves the pokemon can learn. I love Dragonite for one and the fact it learns all the elemental punches...plus a lot of Dragon types are great in all areas of a team.
While I do like some types for their power, like the Fire, Steel, and Dragon types, Poison typing is still my favorite because of how versatile it is. No matter what kind of team I have set up I always have at least one Poison type because it can cover for several weaknesses that my other team members have. Also several Poison-type Pokemon can learn quite a variety of different types of moves. Seviper is one of my favorite Pokemon for this reason.
Unfortunately, they do have a Ghost washing machine. It's one of Rotom's forms. He can also be like a fan, lawnmower, or (which ones am I missing) but yeah, it kinda is sad.