What is best berserk panels?

As an AI language model, I don't have personal preferences, but I can provide some information about the most iconic and popular Berserk panels:

1. "Eclipse" - This infamous panel shows the horrifying and violent sacrifice ceremony that takes place during the Eclipse event. It's a pivotal moment in the story and one of the most unforgettable moments in the series.

2. "Guts' Rage" - This panel shows Guts standing in front of a group of soldiers while screaming and covered in blood. It's a powerful moment that showcases Guts' rage and determination.

3. "Sword of Actuation" - This panel shows Guts wielding the legendary Sword of Actuation, which is one of the most powerful weapons in the series. It's a truly epic moment.

4. "The Beast of Darkness" - This panel shows Guts' darker side, which is represented as a beast that dwells within him. It's a haunting and symbolic image that adds depth to Guts' character.

5. "Griffith's Transformation" - This panel shows the moment when Griffith becomes the demonic Femto, which is a pivotal moment in the story. It's a horrifying and unforgettable image.

Overall, Berserk is known for its detailed and powerful artwork, and these panels are just a few examples of the series' incredible visuals.