It really depends on what your needs in a phone are. I would just compare features with each phone, and see which one best suits you. Also, check out prices as well.

I have a Galaxy S3, and it works pretty good. It's my first smart phone, so I can't really give any comparisons to another phone. It allows me to do pretty much almost anything that I would normally do on a computer (with some limitations).

i use an iphone 4s but if i had a choice between a 5 and a 5c i would buy a 5s haha but i would rather buy a iphone 5 since i dont like the look of the 5c and i have no idea how to work Samsung phones :/