- compatibility (standard connectors - easy file transfer, charging)
- unlimited customization options (make your own UI, if you like)
- file system access (like in computers, easy open/attach files)
- real multitasking (run many apps simultaneously, fast switching)
- more choice in hardware (many manufacturers - better prices)
- great community support (open source OS - custom ROMs)
- expandable storage (SD card slot, available in some devices)
- 100% battery in 1min (removable battery, available in some devices)
- excellent ecosystem, quality apps (no different than iOS)