Hi Fuchs.
I understand your confussion, as brokers world is a complete jungle, you never know what you're going to find out there...
I can only speak about my own experience and other people i know, and the fact is that Interactive Brokers and Oanda are the brokers most people have been using over the last years.
It's true FXCM has been sued recently, i forgot that.
I didn't know about GlobalPrime, seems quite good. I'll take them into account for the future.
I hope you choose well and don't have any problems.
Bye.