Titles for different categories same domain

[LD]

I have read the title of a site carries a lot of weight, and I was wondering the best way to structure different niches on the same hub.

I am building static sites for all my categories, using Dragon Links as the engine. Each category will be a seperate .php file and uses code to call up header and footer (if that makes any difference).

Should the title of each page have a common word or phrase as "luscious amaterus"; "luscious asses"; "Luscious latinas"...or is it best for each category to have unique wordage as "amateurs"; "asses"; "latinas"...? I have read the spiders do not like the former, but thought I would ask..