I'm sorry you don't want this to be a "Ford bashing" thread when you specifically asked about the worst possible car brand in the world. I have an ecoboost that I drive every day. I made my work buy me a new car when I agreed to work for them, so its new. Its the worst vehicle I have ever driven. While the engine is ok, the fit and finish of the interior is garbage. The difference in tightness of steering and driving feel is night and day between any of my ford vehicles and my 4runner. And don't ask me about towing, if you tow with an ecoboost your MPG is something like .09 miles per gallon. I watched a great youtube about how terrible it was when towing uphill. If you are going to get a Ford truck...that's neat, every other person has one and they all suck. Heck, I have two and think they are both crap, my other Ford is an F350 super duty with the 7.3L. The only reason I drive the ecoboost is because it is completely free.
In my opinion, you are not "making the switch", you are trading in a swiss watch for a dumpster with wheels that may or may not work in 6 months.