Yes, personal trading experience with a broker will be the best proof of your choice. Therefore, when I was choosing a broker for trading, after a demo account, I opened a small real ECN account (my broker fxopen gave the opportunity to open it starting from $100) and there I checked the quality of order execution, the stability of the trading platform and the size of spreads, which completely satisfied me. Only then I increased the size of my trading account.you cant find a best broker without using this practically , even i do not believe the reviews from online.