I like this answer. hehe. I lack of experience. how long are you doing SEO my friend? I know google wants category, sub-category type of websites. Google wants organized sites
I've been breathing SEO everyday for at least 2 years straight. The thing with SEO is you got to have a plan & keep moving forward to see the real benefits. Remember, slow & steady wins the race.
This is why the first url is a winner... it alllow your keyword to be found by the Se's in your url. Cheers
#3 Is SEO friendly.... Remember, the more pages, or categories or subcategories a spider has to crawl, the longer it takes for them to find it, index it, because it has to actually go through 3 or more subpages, subcategories to get to exactly what the page is about or post is about. Anyway, go with #3.... GC
The first one completely sux... too much going on to actually get to the page.... You can put your keywords into #3, and get straight to the point for Google to crawl and index it immediately.. Much Much sooner than #2 or #1. GC
I use 1. http://website.com/maintopic/subtopi...fictopic/post/ in my site .I have not tested the other two.I am not sure about the result