According to my knowledge, I can say cloud development is the best because it is more efficient in monitoring security and data breach is very rare. The performance and productivity of cloud computing are very high the data is secure and it doesn't take much time to perform any operation.
If you are planning to learn more about then I suggest you go for Cloud Architect Masters Course offered by Intellipaat.
Before enrolling do check out this video on how Intellipaat helped Sonu babu Joseph in her career transitioning from Web development to Cloud computing -