This is an alignment chart for Spider-Man based on these ones for Superman and Batman: [link]
Credit goes to ChopSilverBlood for the alignment chart sheet. Expect a few others after this one.
As for the different Spideys...
Lawful Good: Spider-Man from the movies even though he's more Neutral Good than comic book Spider-Man...ah well.
Neutral Good: Comic book Spider-Man. I really should have switched him and movie Spidey around but its too late now.
Chaotic Good: Spider-Man from the Spectacular Spider-Man TV show, where he's got little to no respect for authority.
Lawful Neutral: Spider-Man during his time as Tony Stark's lapdog.
True Neutral: Peter Parker, who just wants to pay the bills and get the girl, not save the world
Chaotic Neutral: Spider-Man as he initially was, not yet understanding power and responsibility and just wanting to goof off with his powers.
Lawful Evil: Spider-Man in the "Bad" ending to the video game Web of Shadows, where he's taken over the symbiotes running wild through New York.
Neutral Evil: Spectacular Spider-Man when under the influence of the venom symbiote.
Chaotic Evil: The Spider, an alternate universe version of Peter Parker with the Carnage Symbiote who is every bit as bad as Cletus Kassady.