What do you think the best risque management in Forex is? do you believe in the 2% rule?

Your risk reward, must not be less than 1:2.

I certainly believe that 1-2% risk of your capital is feasible to manage your risk.

Most professional traders risk not more than 3%.

I Personally risk one to two percent of my capital in one trade, highly depends on the fundamental and technical analysis of the traded pair. For example, in times where there is high volatility (from news or other sources) I do not risk more than 1%.