I had done PMP certification about 2010 but I was not satisfied. There are huge gaps between practices on ground and PMI. There are many outputs that PMI suggests which are rarely a written record . There are quite a few inputs and tools that are like motherhood statements e.g. meetings is suggested as a tool!
What's better is what fits the specifics of the particular project you are working with.
There are a bunch of project management methodologies and frameworks to choose from. Projects vary in scope, requirements, target audience, domain in which they run, constraints differ, etc., meaning that "the better" methodology to use will also differ. How you manage building a small e-commerce website to sell clothes will differ from how NASA will build their software, for example.
You have to account for the following:
In theory, theory and practice are the same. In practice, they are not - Benjamin Brewster
Project management techniques, methodologies and frameworks, give you the theory: a set of rules, practices, principles, guidelines and tools that have been shown to work in various contexts. But they can't give you a set of steps to follow that guarantee success on any project, because as I mentioned, all projects differ in some way or another.
So as a Project Manager, you need to invest in knowledge, skills, tools, and techniques to apply on project activities to meet the specific project requirements and constraints. It's then with experience that you start to recognize when something is "better" to use, given the specifics of the situation you find yourself in.