What is the advantage of Symbian OS devices comparing with J2me and Brew OS devices?

• - Symbian is the latest OS where as j2me and Brew OSs are old ones.
• - Symbian OS has SIS file format where as j2me has JAR file format which means this is a third party software and anybody can develop softwares in this OS.
• - Symbian is a fast browsing and a fast operating system. j2me is not as fast.
• - Symbian OS provide touchscreen phones such as UIQ phones. No such facility on j2me.
• - Symbain OS has superior hardware access to the phone compared to j2me and Brew OS
• - Symbian OS offers rich UI.