For what they are, you should Google each one and then read and compare the two. As for the future for a career, that is anyone’s guess in this economy. At one time, web page design was the top paying, stay at home job. Now, there are sites that let’s anyone become a web page designer. It is when you have to include databases, secure transactions, and other options like that is when you will need an education on it. So, I would say, pick the one that you enjoy and go from there.
This is my second career after the military and computers was just a hobby for me, so, before I retired, I obtained my A+ and a couple of other simple certs, and I went from there.