Hubin: lots of acceptance out there, has features you want. On the minus side, the one you want only works with an ESC that has a governor. The last time I looked (which was a while ago) you wanted the -9 model. He has more "sportish" ones that don't need a governor, but try to compensate for battery sag with a scheduled increase in the command to the motor. If you can track him down, send him an email and ask for his recommendation (or use what's recommended in whatever manual you're talking about).
KR: Again, I'm not sure of the exact model you want. It has the plus that you don't need a governing ESC -- it'll work with cheaper ESCs (which was Kieth's intent). On the down side, the governing won't necessarily be as good. Another downside is that wiring it in is slightly more complicated -- you need to tap into one of the motor wires so the timer can use it as a tach for governing.
Burger and Fioretti -- if you have to ask you probably won't benefit from them. But, I'm just regurgitating the opinions of others here. They complicate the trim process. In fact, at one point the recommended procedure was to disable the airspeed regulation while trimming the plane, because the speed regulation can mask problems with trim. Then once the plane itself is trimmed, start trimming the timer.