Question posted in 
I’m willing to start a web development project and I have none or little experience with these products.
How do you think I could evaluate these webservers for local development use with PHP and MySql?
I feel sort of confused and can’t make a final decision for one of them.
2
Answers
I think you are a newbie, if your computer is mac, use Mamp, otherwise use Wamp.
Your question can be answered with any given array of webserver, and that way we go a level up of abstraction to see the “big picture” and avoid opinion-based choice among brands, just product brands.
The important thing is not which of them should you use, but
what are the important aspects to consider in order to make a reasonable choice that fits well for you.
Making a comprehensive evaluation of features amongst a variety of products is not an easy task, it has a methodology in terms of Software Engineering and IT Management and despite all formal steps, in the end it’s up to you and your team the actual whys for making that choice.
As a rule of thumb, get to know that it’s a common practice to have many stages of your application: local, testing, user acceptance, production. These stages may vary, but it will be common to see at least local and production. So consider trying to have the same webserver that will be used in production (or at least the next stage), in order to reduce as much as possible the friction of deploying forward to production environment.
Also consider using a webserver that is easy for you or your team to setup, specially taking into account that your question itself reveals the need of ease of use (at least for the first steps).
Finally, consider making your research, build a (or search Internet) comparison table to visualize their features as pros and cons related to the needs of your project.
If you are willing to start learning web development and you have no rush to get into production, just grab the one that appeals you the most as an easy start, and consider giving the other options a try as that will provide you with enough experience as to get an accurate idea of what could be a better fit for future projects.