Quote from fxvipservice:
Hello and thank you for a great question and allowing this thread to continue. I'm hoping we can openly discuss these topics and all learn and explore FX related topics. I agree that MT4 is the most widely known and accepted platform for the retail trader not necessarily because "it is geared towards the benefits to the dealer, not the trader" but because of the ease traders can automate and incorporate expert advisors(automated trading robots) and if you switch brokers you still have the same platform(just a different logo in the upper left) and the EA you've invested time and money automating can be transferred and used without interruption.
As far as virtual dealer plug-ins etc that is a function of the integrity and honesty of the broker a trader chooses. That is the real value of using an introducing broker, selecting one of the few honest brokerages to trade at could be one of the most important decisions traders make. Even if the virtual dealer plug in did not exist if you are trading at an unethical broker they could stop hunt, spread widen and manipulate the price feed to generate off quotes, etc to impede your strategy with real dealers.
With the increased regulation and evolving/consolidating industry there seems to be a bigger push towards the broker/dealer model of brokerages having fiduciary responsibility to provide best execution and no interference with their clients trading. This is a trend but by no means law and there are plenty of brokerages out there still engaging in these practices and unfortunately it is still up to the trader to avoid opening there.
The good news is that there are actually honest Forex brokerages out there that are truly straight through processing their clients flow and are allowing a fair playing field for their clients to execute their strategy without ever manipulating the price feed or execution.