This is indeed a very good anime/manga. It's a fiction but the character always mingle with famous historical figures. Even one of the main characters - Sagara Sanosuke is a real historical figures.
The best fighters should be the battousai himself who is now wielding a sakabato then Shishio Makoto and Seta Sōjirō. I watch this long ago, in fact one my first anime
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I assure you the Kyoto arc is the best. After the Kyoto Arc the story is not that great anymore. However the best Kenshin story is the Prequel OVA when Kenshin first met his master Hiko Seijūrō and learn Hiten Mitsurugi-Ryū sword technique and become the Hitokiri Battōsai or manslayer. The name of the OVA is Rurouni Kenshin - Reminiscence - a 4 parts OVA. It's the #1 anime series in the
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