Skill is good and educational certificate is also good. Having any of them can actually put food on your table, but the question is which of them will you let go for the other. I mean education can get you a white collar job the same way a skill can too. For me i will let go of the skill because skill without basic education is not good at all. Because I have seen a situation whereby a guy with good skill who got a job was unable to give quotation and he lost the job .Formal education is good for everyone.
I love them both and besides there is nothing holding against anyone who wants to have them both, as the matter of fact I currently have both certificate and a lot of skills, I wasn't told to choose only one but instead I feel there is need for one not to leave by only one thing considering the regular changes on the economy so actually if one is not ready to see how things are going they might be left behind. The reason why choosing between them is not necessary is because what if you choose skills and there come a time when to earn a lot of salaries requires your school certificate and the same thing goes to choosing school because there could be a low demand of graduate and how demand of skills so actually that's why some persons prefer to be versatile in nature.