When it comes to promoting sites from sponsors or your own, which niche have you had the most success with and which one the least?

Have you found yourself pretty much sticking to one particular niche time and time again despite having trying out others?

I have to say, the best selling niche for me has always been mature women, closely followed by ebony chicks and sooner or later, i always tend to head back selling these niches when it comes to the sites i build and submit.

Was just wondering if anyone else was the same way, only working on a specific niche and capitalizing on the productivity of that single niche over others?

Regards,

Lee