All controllers are not equal in capability, however. Some of them (e.g. many Drawtite & Reese models) use a time-based algorithm to apply increasing brake pressure. This is simple to build and install but (in my opinion) a decidedly poor way to control braking. In a panic stop you don't get full braking for several seconds, and in heavy traffic or slight downgrades, where you need to cautiously ride the pedal, you get ever increasing braking (to near lock-up) when what you want is continuous light braking. The Tekonsha controllers do this quite well and the Prodigy is one of the best (Primus & Sentinel models are excellent too). I don't know about the underlying technology of the Jordan, but Jordan's have had good reviews over the years.
Note: Drawtite/Reese have come out with some new, "intelligent" models that do proportinal braking and I assume these do not have the timed algorithm of their more basic models.
