iOS needs a major overhaul, although I still think its ahead of Android for the time being. Android just has too many bugs and a lame interface. I came from an EVO and was tired of it after a week.
Speak for yourself. My DX is given me much more joy than my iPhone ever did. There is perhaps one or two exceptions, iPhone nailed copy/paste after they finally brought it to the iPhone. Something so basic was so late but done so right. This is where the DX lacks.