Which sistem is the best for FOREX?

There isn't one. Stop looking for the holy grail of systems. Forex is a tough game to play. There are lots of ways to trade it. You could use a moving average crossover, stochastics, MACD. These may be the most reliable technical indicators. Or, if you want, you could use fundamentals. Some currencies are commodity currencies. Australia is one. When the price of gold goes up so goes the Aussie. The loonie does the same but with oil price. Of course they don't follow in lockstep, just generally. If you don't know any of the terms in my answer, then you need to study up before you start trading. Open a practice account for a few months to try it out before putting real money at risk.

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Check out this 2 systems :1. Peter Bain - Forex Mentor Trading strategy2. FXCM - You can now combine 3 trading systems from FXCM into a "personalized" portfolio.

For me it's the "Forex Killer" http://www.forextopten.com/forexkillerreviews.htmland the "Profitable trading system"http://www.forextopten.com/profitabletrendforexsystemreviews.htmlOn those links you can read reviews on both systems.Good luck