I need answer from anyone who has experience with any article written site, tell me d advantages and disadvantages too and also the best that will earn me good money

No one can tell you this, you need to decide which one is good for you. Each website or service has it's own pros and cons. Try as many as you can till you find the ones that fit.

What I can advise you is to first find A RELIABLE way to change whatever Paypal you earn or you will find that you work and the exchanger is the one that spends your money. Really it's that bad.

Chibenze: I need answer from anyone who has experience with any article written site, tell me d advantages and disadvantages too and also the best that will earn me good money

You will also have a blog set up and create a hire me page. This will enhance your chances of getting jobs.

In addition to that, you should learn to market yourself. And please do not go to any of those content mills such elance, guru, odesk, freelancer, fiverr and the likes to look for writing jobs. There are people who earn as much as $50/ article and this people are doing it without content mills. At content mills, you are paid slavery wage. I wished I had a modem, I would have written at length to share what I know with you. But I can't because using a phone to type isn't easy.

@Op...google Bamidele Onabalusi. He`s a highly respected freelance writer earning a lot of money. He`s just 18 years and you can learn a lot from him.

Try triond or bukisa. I earned some money there before. This one is about traffic sha, just write original content and if you are good, you would get all the traffic that would increase your earnings, also you can integrate your adsense into these sites and earn from google too. Elance is another great place to earn too.