ITT: Post your favorite Gen I Pokemon and talk about why it's your favorite

I have to go with Blastoise. It's the first starter I ever picked, and even though I eventually used Charizard and Venusaur, my run with Blastoise was my favorite. I was one of those dumbass kids that had an overleveled Blastoise with 5 mons to sacrifice to keep it alive. I still felt pretty proud after getting into the hall of fame. Not a big fan of its Mega though. The hand cannons are too much for me.

Honorable mentions go to Slowbro and Vileplume.