In a fanfic, it really depends on how the writer wants to portray it. If the writer wants to emphasize the unique abilities of the Lake Trio and perhaps give them some sort of combined power boost, they could potentially defeat Arceus. However, Arceus has the advantage of being a creator - like figure in the Pokemon world. It has the ability to create and shape the world, which gives it a very high level of power. So, generally speaking, Arceus is more likely to be the victor, but in the world of fanfiction, anything can happen.
The Lake Trio consists of Uxie, Mesprit, and Azelf. Each has its own special abilities related to different aspects of the mind. But Arceus is on a whole different level. It is said to have created the entire Pokemon universe. When comparing their powers directly, Arceus seems to have more raw power. But in a fanfic, the story could be written in a way that the Lake Trio discovers a weakness of Arceus or they team up in a very strategic way. Still, Arceus' status as a supreme being in the Pokemon world makes it a very tough opponent for the Lake Trio.
It's hard to say for sure. Arceus is super powerful as the creator Pokemon. But the Creation Trio also has some really strong abilities. So it could go either way depending on how the fanfic is written.
In fanfics, the battle between the Pokemon Creation Trio (Dialga, Palkia, Giratina) and Arceus can be really intense. Usually, Arceus is seen as the god - like Pokemon, but the Creation Trio also has incredible powers. Dialga controls time, Palkia controls space and Giratina rules over the distortion world. Their clash might be about power struggle or some sort of cosmic balance. It really depends on how the fanfic author wants to portray it.
One possible plotline could be that the Lake Trio discovers a threat to the world that Arceus is either unaware of or is causing (unintentionally perhaps). So they have to battle Arceus to stop this threat. Another could be that a powerful villain manipulates the Lake Trio into believing that Arceus is a danger and they must fight it.
In a fanfic, Ash might have a chance against Arceus. Ash has proven time and again that he can adapt to different situations. He could potentially find a Pokémon's weakness or use some unorthodox strategy. However, Arceus is the creator of the Pokémon world. It has the ability to manipulate reality on a fundamental level. So, on paper, Arceus should win. But fanfics often play with the rules, so Ash could win through some plot - driven miracle.
I think Goku would win. His power and combat skills are just too overwhelming for Arceus.
In a fanfic, Latios could potentially win. Latios is a Psychic and Dragon - type Pokemon. It has high speed and special attack stats. It could use its psychic powers to outmaneuver Metagross. For example, it could use Psychic to immobilize Metagross and then follow up with a powerful Dragon Pulse.
A fanfic centered around the Pokemon Lake Trio in the Hall of Origins might involve a young trainer's journey. The trainer, curious about the legends of the Lake Trio, embarks on a quest to find the Hall of Origins. Once there, they discover that Uxie's knowledge is not easily accessible, Mesprit's emotions are overwhelming, and Azelf's protection is hard to bypass. But through determination and respect for the Pokemon, the trainer gradually uncovers the secrets of the Hall and forms a special bond with the Lake Trio.
Well, in fanfiction, the outcome between Ash and Harrison can be highly subjective. Ash has Pikachu, his most loyal and powerful partner. Harrison also has some strong Pokemon in his arsenal. If the battle takes place in a terrain that favors Ash's Pokemon, like a forest for his grass - type Pokemon, he might have an edge. But if Harrison's Pokemon are better adapted to a more urban or rocky environment, he could come out on top. It really depends on how the fanfiction author wants to script the battle.
It's tough to predict. Ash's journey has taught him many lessons and he's faced various challenges. Red, on the other hand, is often regarded as a legend. The winner would likely be determined by their ability to adapt and make the right decisions in the heat of the battle.
In the Pokemon manga, it could go either way. Pikachu's agility and electric attacks could catch Dragonite off guard, but Dragonite's size, strength, and diverse move set give it an advantage. It really depends on the situation and the strategies employed by their trainers.