I also agree with the older cats since it's much easier to see their personalities and behaviours. Go to a local rescue or contact a cat rescue in your area and discuss your living situation with them. They will know their cats and can find one that fits your home.

Also, if you want to find a specific breed of cat you can contact local breeders. Many times they will retire a cat from breeding and need a home for them usually at a reduced cost as well. To understand the basic breed descriptions, you can read about them here: Cat Breeds

I've had rescue cats growing up and last year lost my heart cat, Nakita who was a purebred Russian Blue. I would never tell someone to take one cat over another. The best cat for you is one you fall in love with and will take care of throughout its life. Also, I couldn't tell you that males are more lovable than females since each cat is so unique and I've had very lovable cats from each gender.

I just added two cats from a local rescue to my house, a 2 year old female named Gigi and a 7 month old make named Steve. I was originally looking to only adopt Steve but knew it wouldn't be fair to leave him home alone when we were gone to work. So the two cats keep each other company when we're gone and it's very entertaining watching the two of them interact.

Good luck on your search and feel free to ask any questions!!