You could probably say Gunsmith Cats is my favorite series as it's what really got me into reading manga in the first place, Berserk is also one of my favorites for sure. :
Amazon.com: Gunsmith Cats - Bulletproof [DVD] : Gunsmith Cats: Movies & TV
Gunsmith Cats Anime Series Dual Audio English/Japanese | eBay
WTK on Twitter: "Gunsmith Cats: Explosive Edition Blu-ray packaging preview https://t.co/hL6QqCYI6d https://t.co/KAxC9W4yaO" / Twitter