If I ask you, which one do you prefer "I-phone or other mobile phones like Nokia,LG or something like that, what will you choose?

In all honesty the choice is yours. If you are trying to consider what to buy take things in your life into account. For example. I work in a warehouse, I also own a dog. My hands are constantly dirty because of my work and my dog is messy. Therefore I wouldn't get an I phone because they are usually touch screens and it would get dirty and possibly mess it up

Sort of like asking if someone likes purple or green, it is all up to who you are what you do and how you do it, Me I like to mess with stuff so I like an Android phone because I can flash it with Cyanogen or some other ROM and back the iPhone dose not let you do this then again there are more apps on the iPhone and I think the hardware is better than most Android sets. Then again I am the wrong person to ask I use both(iPhone at work droid at home) and would not use only one of the two.