Which phone is best????

Right now I personally wouldn't go with the Samsung Galaxy S as apparently Samsung is unveiling their next Flagship phone sometime this month. The iPhone 4 is about to be update in the coming months as well. As of right now, only the Mozart and N8 are the ones with lasting value of 1 year+ as Windows Phone 7's hardware requirements will keep the Mozart decently relevant and the N9 is not going to be a direct descendant of the N8 (N9 will be running MeeGo while N8 is using Symbian^3). It all comes down to what you need now, N8 has great hardware, but the OS is outdated, while the Mozart also has good hardware, but the OS is primitive (will be updated though as it is a new OS). As of now, I would go with the Mozart as it has good hardware and lasting value, but if you can wait a about 3 months, a new iPhone and a Samsung Galaxy 2 will be released.