Which is better in terms of SEO ranking by Google, slash or dash?

Selected answers from the Dumb SEO Questions G+ community.

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  Collin Davis: Hi Aditya, slash is used for showing separation of categories while dash is used to differentiate between two separate words.
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  Federico Sasso: Search engines treat both - and / as token/word separators. Nevertheless, using slashes as word separators is somewhat weird; expect users attempting to browse the "virtual" directories in the path to find categories; also, an URL with too many directories could be seen as too deep to be perceived as important in a site, both by a user's and maybe by a search engine stand point.
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  Ivan Aditya: Wow, totally fast response.  ;Any rules what's the maximum of slashes you can have in an url?
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  Federico Sasso: &gt; Any rules what&#39;s the maximum of slashes you can have in an url?<br />Not really. After all, they are valid URLs according to the specs. I said could because I remember no evidence directory dept could somehow penalize your SEO efforts; normally search engines are more sensible to &quot;link depth&quot;. Anyway, a general rule of thumb you normally see is &quot;no more than 3-4&quot;, but that&#39;s more for human beings usability.
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  Ivan Aditya: So, basically it&#39;s a two different purposes and will not affect the SEO?
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  Federico Sasso: I don&#39;t love absolute statements, but yes, basically yes.<br />If I were you, I would go for the dash for word separation and use slash/directories only when it makes sense for categorization, as  ;pointed out.
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  Tony McCreath: Google does have a patent related to directories and categorising pages. So catogorising pages via directory structures may have some benefit. Probably not directly to ranking but in helping Google work out associations.