Hi,
Although I haven't owned a Black Widow Joystick, I have owned a Thrustmaster T-Flight Hotas. From the looks of it, the Black Widow looks a bit
small and fidgety and the rudder slider behind the throttle looks a tad small to be used accurately (but that is only a guess, so take it with a pinch of salt).
Personally, I would recommend the Thrustmaster since it worked like a treat for the couple of years that I used it and it still works. The rudder slider is large
enough for decent control, the throttle and joystick can be seperated depending on your set-up and has a multitude of buttons (always useful in FSX).
It would probably be good to get a review from a user of a Black Widow but you can't go wrong with a Thrustmaster.
Hopes this helps,
Caleb