Android
Pros
- Open Source
- Customizable
- Hackable
- Long Life
- Wide Variety of Devices (Even iPhone!)
- Multiple sources for apps
- Has cool games like Portal 2D
Cons
- No iMessages
- Non-Verified Apps
- Knox
IOS
Pros
- Closed Source
- Clean
- iMessages
- Verified Apps
- Secure
Cons
- Not easily customizable
- expensive
- one source of apps
- Hard to Jailbreak
- Does not have cool games like Portal 2D