Sexual content 3/10:
A few female characters dress in skimpy clothing, one of them is constantly showly cleveage. Also, if I remember there is a little bit of innuendo here and there, but it's mostly Megumi teasing Karou about Kenshin, (Or using him to do so.) And there is one cross-dressing character, but he's mostly harmless.
(he does have a crush on a character, but his feelings are not returned and he isn't in the show very long. In fact I didn't even know he was a guy until some other characters point it out.)
Violence 7/10: I think seven out of ten is warning enough.
The violence is never gory, (Blood splatters and silhouettes are shown.) People do die, and there are some cruel deaths that did make me upset. [spoiler]A boy goes with Kenshin to find his parents, only to see them strung up like a couple dead animals, beaten to death. (You only see their feet though.)Also a character does die in a rather disturbing way, (Cringe worthy I might add.) There was a bit of lead up to it however, so it wasn't a shock or anything and afterwards I thought it was probably the best way for that character to die.[/spoiler]
Language 5/10: On average RK has about four+ swear words an episode.
(This is usually ether the villain's fault or Sanosuke's and Yahiko's fault.
)
The most common are, the D-word and the B-word. (Someone correct me if I'm wrong on any of this. ;^^)
Religion 2/10: There are temples for worship and one character is an ex buddhist monk.
Dub VS Sub: I see that Julianne suggested the dub, I believe the sub to be best. (I know Kenshin being voiced by a women takes a little getting used to, but I think it really does fit his character.) Plus, you can't miss out on Sanosuke, Saito and Aoshi's japanese voices; they fit the characters to a T!
(Also, I love Misao's voice, it's done by Tomo Sakurai, who not only has a great singing voice, she voices Meimi Hanekoa! {That's Saint Tail to you who don't know.
})
Ending notes: I highly recommened Rurouni Kenshin, it has a great cast of a characters, a deep, moving plot and a fantastic soundtrack. (Don't let the first starting song fool you, all of the ending songs are awesome-sauce and the second opening is great.) Oh, one last thing, stop watching around episode 63 and start up the manga. (The rest of the anime is filler ranging from, okay to barf bags.
)
Enjoy RK, I know I did! 8D
Thanks!
It's my favorite. 
