I have an iPhone 5, and watched the latest release video on youtube out of curiosity. The new iPhone 5s has some pretty nifty advancements far beyond what other companies are doing. Apple is still setting the standard in innovation. With that said, buy what ever you like and will be happy with. There is a reason there are other solutions on the market, some have features an iPhone doesn't and I wish they did.
Unfortunately I am stuck with Apple products since I have hundreds of dollars in apps, and they transfer to my iPad. I looked at other tablets when buying my iPad, but the iPad won out overall, and money was not the deciding factor.