iphone 5 dropped from 2 storeys... the glass shatters, not the screen beneath, it's still usable... skip to 2:06
no problem with droid smoothness in the newer models. even sola is smooth... too smooth, like really there is butter on the screen. controls are positively slippery. the screen triggers actions sometimes even when your finger has not touched the screen, even though it is not in glove mode.
note II does not have a smoothness prolem, but it does tend to glitch out in different weird ways, apps get triggered on incoming messages and calls, goes into voice command mode every time it is docked, searches for voice input randomly during talking... list goes on
the "smoothness" of ios here may just be the lack of options. No multi-paning, no multi-tasking, no widgets. no 3 permanent buttons for back, home and menu, and another button for unlock, it's all just one belly button. no clutter, and you can do one thing at a time very well, and keep starting up new apps continuously without bothering to task manage and swipe down running apps to destroy em.