Since very long ago I go by my nickname Escobana but I don't stick to the same bio everywhere. The only real bio is written on Hubpages because it is by far the most interesting social network I know.
Facebook is too commercial but effective with friends all over the world and I'm sure you'll gain more followers when you have several profiles with the same picture and bio.
I myself am not too busy with gaining more followers and earning more money. I'd rather keep a small group of passionate followers and earn nothing, than having to keep up with too many profiles on too many different sites.
I'd prefer to stay focussed on writing Hubs and give myself a break, whenever I feel overwhelmed by life itself. Whether your profile should be the same, depends entirely on the personal goals you'd like to achieve.