The best way to find out what's best for you is to read reviews. A website like http://reviews.cnet.com/smartphone-reviews will give you good information to make an informed decision.
In my opinion the iPhone is the best smartphone available on the market. User ratings also give the iPhone higher ratings than any other smartphone available.
T-Mobile has the best and cheapest service plans for smartphones, but they are not available in every area. If they available in your area I would choose AT&T as the next best option.
That's like asking, "What's better, Best Buy, Fry's Electronics, or Target" to buy your new TV.
There are several capable smartphones available. The Apple Iphone 5 is widely considered to be one of the most capable and user friendly devices. However the "best" smartphone for one person may not be the best for another, so it would be wise to shop around.
Products specifications for a Blackberry Smartphone are usually available on phone retailers websites. They are also available on Blackberry's own website.
Depends on where you are
It simply depends on your use but one thing which is for sure that iphone is more the best smartphone, Every smartphone based on Android is better than iphone. According to the official list HTC Desire is considered the best smartphone of current market and i love it.
The answer is, Maybe. They are rumored to be available sometime is 2014. Not sure when they will be available, if ever, but when and if they are, it will be announced.
The best top rated cell phone, smartphone or otherwise, at the moment, is the newest HTC One smartphone according to several review sites on the internet.
My recommendation get a review on all smartphone, base on the review then make your decision.
xperia s
Android is usually the best smartphone for a new user. Android phones have a very easy to learn system.