Well I have two favorite characters.
First one is Daimien my Half Devil Chaotic Good Barbarian. And yes I said Half Devil, I have the Devil's Players Handbook. And yes he was Chaotic Good, it states in the book that if you play a Devil he can be good, like a repentant soul or something. My favorite moment with him was when my group was attacked by a wizard in a field and the wizard cast Darkness on us. Now it seems my character had a perk from his lineage is that he could see in Magical Darkness. So the DM was having the wizard taught us and stuff like that, I had my character literally walk to the edge of the Darkness where the wizard was and grab him by the throat and puke his head out of the darkness and say "Gotcha". The DM actually rolled to see if the wizard peed himself, he did. I should also mention my barbarian was 7 feet tall and the wizard was like 5'5". Any he throw the wizard like 20 feet away and rounded up his party and got everyone out of the darkness. We started to battle the wizard cast fireball on my character. So everyone rolled a dodge roll, I didn't roll anything cause well my guy was also fireproof. So he took the full fireball and just glared at the wizard and said "Ok now you starting to annoy me". The encounter ended with the wizard running away.
Second one was Rock, my Half Giant Chaotic Neutral Barbarian/ War hulk. His strength normal not raging was 40. The War hulk class has a lovely class trait where your to hit bonus doesn't go up every level, your strength goes up by 2 every level. The whole adventure with him was great. Started out as a privateer then ended up laying siege to a castle, went to Hell and killed a demon. He got a dire lion pelt, helped a Ranger get two dire lion cubs as companions, children of the dire lion he killed in self defense. Also he was the siege weapon for the ship and when attacking the castle.