Guinea Pig or Hamster?

Okay the person above me has great information and I agree with all of it. Especially about guinea pigs having large cages. My mice have oversized cages and I wish I could get them a bigger one! lol But I had to say this...please consider adopting something (instead of buying from a pet store). If you go to PetFinder.com you can find a ton of guinea pigs, rabbits, and even some hamsters that need adopted. And you can search for ones near your home. WWW.Petfinder.com

It depends on your friend really. Both are realy easy to care for but you should make sure your friend definately wants a pet. In my experience hamsters and guinea pigs are very similar in attitude and the way you keep them. But Guinea pigs need a big cage. too many people keep them in tiny cages and this is cruel.They are social animals and when i was younger i have guinea pigs,rabbits and quails all in one cage.They never fought,the only issue i had was i had to clean them out more. Hamsters cant be kept together unless from birth.They are prone to fighting and majority of the time will eat any babies they produce. If your friend is wanting something that will be more friendly and get attatched to her,, i would suggest a rabbit. You can littler train these aswel. You can with guinea pigs but they are alot harder to train.