Differences between Iphone and Samsung? And which the best samsung?

Some people say iphone's better. And others say Samsung.
I just want a phone, that i can call people, chat with them, play games, listen to music and go on the internet.

i think both phones r the same in these things. But what are the differences between the both phones?

and can we download whatsapp in samsung? < the one i can contact people who have blackberry?
+ what do you is better?

and yeah, can you tell me please which samsung's better? I'm confused, it's either Samsung S3. Or Samsung note2… And today my dad said "Samsung Galaxy Mini S5570" is good too: S

I'm not really sure

When people say samsung, they must mean samsung's Galaxy s3

The Galaxy s3 is far superior than the iPhone, and it is a beautiful phone! I encourage you to go to a store front and get a good look at the Galaxy s3 before you buy the iphone.
The galaxy s3 is cheaper, for more advanced, and runs Android 4.0 (soon to run jelly bean later this month).
I just checked on my samsung galaxy s3 and they do have Whatsapp.

I don't like apple, but the iPhone is more of your starting smart phone. If you want simplicity but not room to do more, get the iPhone. If you want the power to do everything possible while still keeping it simple, go with the Galaxy s3.

Best of luck!

IPhone is an iconic Apple branded phone, and while Samsung phones have many variations and models of phones, like the Samsung Galaxy S3. IPhone is simpler and more reliable than Samsung phones, but iPhone also keeps you locked into Apple's closed-ecosystem, in which you can't download files of the internet, play FLASH content etc.

It depends on which Samsung phone you are talking about

Yes, you can download WhatApp on all Samsung phones running Android OS, which includes the S3, Galaxy Note 2 and Galaxy Mini S5570.

The Samsung Galaxy S3 is the best Samsung phone available at the moment, but the Galaxy Note 2 is coming out later in 2012, which is better than the S3 in most aspects. Please note, the S3 and Galaxy Note are both big phones, having 4.8inch and 5.5inch screens respectively, while the iPhone only has a 3.5inch screen.
PS, the iPhone 5 is coming out in less than one month, and will feature new features, including a new design and 4inch screen.