If you like to tinker/customize, look at Android phones. Though, in doing that, you can often create more problems for yourself. If you want something that may not be the most blingly screen, largest screen, or even fastest cpu, isn't as customizable but generally really works as advertised, get an iPhone. But above all, go to all the stores and play around with them. I've been making a living writing Android and iOS apps the past few years. I've got a lot of devices, and lot of experience with them all. I prefer the iPhone and have it as my daily phone, because "it just works" and I've not the time nor interest in the tinkering (did that plenty with Linux boxes, building my own machines, overclocking and building servers to do things cheaper years ago). Though, I've often wished iOS would open up a bit with more ability to customize then what it does ATM. I realize why Apple shies away from offering that. For them, it makes sense. Luckily, both Android and Apple are doing well, so there are multiple options for everyone and that should continue for the next few years. I'd stay away from MS, Linux and Blackberry phones.
