Although I know that Dogs are excellent company and be the best of reliable friends - I prefer the Cool in aloof and selfish nature of a Cat - I guess it's their Independence that appeals
I personally myself would much rather live with a cat. I think with my over busy lifestyle and such I would feel guilty for having a dog and not being able to take them out on walks as such would just be a sort of cruel thing to do to a dog. With a cat they will go out on their own and are fairly easy to look after and love which suits me with my lifestyle.