I have most of a Digimon line, but I wanted some of your opinions on what should be the Mega.

Baby I/Fresh: [url=https://wikimon.net/Botamon]Botamon[/url]-> Baby II/In-Training: [url=https://wikimon.net/Wanyamon]Wanyamon[/url]-> Child/Rookie: [url=https://wikimon.net/Koemon]Koemon[/url]-> Adult/Champion: [url=https://wikimon.net/Hanumon]Hanumon[/url]-> Perfect/Ultimate: [url=https://wikimon.net/Gokuwmon]Gokuwmon[/url]

Now I have 3 options for the Ultimate/Mega:
[list]
[*][url=https://wikimon.net/Erlangmon]Erlangmon[/url]-> [url=https://wikimon.net/Erlangmon:_Blast_Mode]Erlangmon: Blast Mode[/url]
[*][url=https://wikimon.net/Takutoumon]Takutoumon[/url]-> [url=https://wikimon.net/Takutoumon:_Wrath_Mode]Takutoumon: Wrath Mode[/url]
[*][url=https://wikimon.net/Nezhamon]Nezhamon[/url]-> [url=https://wikimon.net/Nezhamon:_Crimson_Mode]Nezhamon: Crimson Mode[/url]
[/list]

The idea for the line is kinda evolution. Like literally evolution. At least at Koemon onward. Monkey with weapon-> Gorilla with weapon who is rumored to ride a cloud (like Sun Wukong)-> Monkey/Man with a weapon who is straight up based on Sun Wukong (which is a Chinese story of a monkey who became a god)-> An actual Chinese God that has a generic human appearance, with a weapon.

I then chose animal like Baby I and Baby II forms without worrying too much on making them conform to the evolution theme, since there aren't that many options for those levels at the end of the day.

Which Mega do you think would work best here?