Touchscreen keyboards are subjective, some you like, some you don't. If you love the pure Google keyboard on the Nexus 4, you can download if from the the Google Play Store for free and use it on your Samsung Glaxy S 3/4 , HTC One or other Android 4.0 or later device.
Some manufacturers use their own keyboard, this app gives you the Google Keyboard. Some users have noted that is smaller than the keyboards installed on their Android smartphones.