Too much negativity lately so lets have a thread where everyone posts their favorite pokemon and favorite gym leaders from each region. Including what we know so far about Kalos.

I'll start:
Kanto: Mewtwo/ Giovanni
Johto: Quilava/ Claire
Hoenn: Metagross/ Flannery
Sinnoh: Torterra/ Crusher Wake
Unova: Scolipede/ Elesa
Kalos: Pangoro/ Clemont