Here's a general analysis:
Buu Gohan Absorbed (Mystic Gohan):
When Majin Buu absorbs Ultimate Gohan, he gains immense power and becomes incredibly formidable. Buu Gohan possesses superhuman strength, speed, durability, and regenerative abilities. His energy blasts are devastating, and he can use a variety of techniques, including the Kamehameha wave and various special abilities inherited from Gohan.
Super Saiyan 3 Goku:
Goku's transformation into Super Saiyan 3 grants him a massive power boost. His strength, speed, and energy greatly surpass those of his previous forms. Goku can unleash devastating attacks, including the Super Kamehameha wave and various other signature techniques. However, maintaining Super Saiyan 3 drains Goku's energy quickly.
Battle Outcome:
1. Dragon Ball Z:
In the original Dragon Ball Z anime and manga, Goku battles Buu Gohan as Super Saiyan 3, and the fight ends in a stalemate. Goku is unable to defeat Buu Gohan, but he manages to hold his own and prevent Buu from causing further destruction.
2. Dragon Ball Super:
In Dragon Ball Super, the fight between Goku and Buu Gohan may have a different outcome. Goku's power level in Dragon Ball Super is significantly higher compared to his Dragon Ball Z counterpart. With intense training and new transformations like Super Saiyan God and Super Saiyan Blue, Goku might be able to overpower Buu Gohan.
3. Specific Circumstances:
The outcome of the battle could also be influenced by other factors, such as the environment, external assistance, or certain strategies employed by Goku or Buu Gohan. For example, if Goku receives help from other powerful characters like Vegeta or Gohan, he might gain the upper hand against Buu Gohan.
In conclusion, while Buu Gohan absorbed is undoubtedly powerful, Goku's potential and growth throughout the series could allow him to emerge victorious in a battle. However, the specific outcome would depend on the version of the characters, power levels, and the conditions of the fight.