I just joined AC! I go through so many phones and OS's! Started with Android (Milestone 1), went to Pre 3 (for a week), then Dell Venue Pro (Windows Phone), then back to Android (Milestone 2) and finally Xperia S! (The best phone).
After using a Dual core android phone with ICS I think I love Android the best, best notification system etc. I did at one stage refuse to go back to Android because of the original milestone was slow etc but Android has come a long away and Im back and happy