First is pretty self explanatory, what is your favorite type and why.
Second is which is your favorite type by looks alone in general, they can be dual types.
Favorite Type: Psychic, I love the idea of being able to destroy almost anything with the sheer power of will.
Favorite Type Appearance: Ground/Rock, I really like the looks of almost all Ground and Rock types and my absolute favorite of them is Rhydon. They mostly look like giant immoveable forces being that they are made of rock and earth.
P.S. Screw Rhyperior, orange and grayish-brown just don't look good together to me.
Fave: fighting. The idea of shooting lightning or blowing ice is cool but with fighting it really feels like the pokemon is fighting with strength they themselves earned and developed through training and constant improvement, plus it's awesome beating the life out of a dragon with your bare hands(or ki). I also like how many fighting types are based off real life martial arts or weapon styles.
Look wise it's probably steel, which is my 2nd favorite type overall. Steel easily has the most badass looking pokemon and the non-badass ones usually have a cool quirky look to them. Wormadam is a bit of an exception though lol.