They are: Omniscient, Objective, Subjective, Limited. A more detailed explanation follows:
So how does this apply to 1st Person POV?
Omniscient: Narration is God-like; all seeing, all knowing, all places.
The Good: As a writer you can be all characters, revealing all plans.
The Bad: There are NO secrets; even the bad guy tells all because if s/he doesn't reveal it outright, the mental notes are exposed to the reader.
Objective: In this POV, the writers is more like a reporter who is in the story but not part of the story. The author tells what is happening as if there.
The Good: The reader is more of a sleuth or detective rather than a character of the novel.
The Bad: More telling by the narrator than action by the character.
Subjective: 1st person POV is best written in this style as it allows "I" to control the content knowledge.
The Good: This permits the storyteller to be an active part of the story and also allows the reader to know the character better.
The Bad: The storyteller is limited to only being able to tell what the current character immediately knows and sees. The character can be literally painted into a corner for lack of knowing what is happening beyond their scope.
Limited: This is used mostly for SF, fantasy and the horror genres; otherwise it is shunned by the others.
The Good: Very tight POV where the reader is the character.
The Bad: All information must be fed to the character/reader and too often it becomes an "info dump" and bores the reader.
Each writer must decide what POV s/he will use when creating the next masterpiece. The hard part is making sure to stay in that POV for the entire book. Good luck.