you could choose superman
reasons:
1-he is always there when you need him
2-he has super powers such as flying
3-his flying helps him move fast and he can sense danger and transport fast
4-he is super strong
weaknesses:
1- I think his only weakness is a rock from his planet which is the only thing that kills him
2-he disappeared once for 3 years I guess and then appeared
this is a hero if you want it virtual if not tell me ill give smthg else
hope I helpes