Fueling & Injection - kenne bell boost a pump vs magnuson magnavolt vs MSD programmable pump booster

What is the real difference between the 3? I haven't found any good reviews or comparisons. Which should I get? :confused:

I've read up and found:

1. KB-boost a pump has a dial to increase pressure and is triggered by a fixed rate of boost 3 or 5 psi--not sure as different articles say different things.
Pros: seems to have been out the longest, most reliable. Simpler design usually is more reliable.
Cons: older technology, only uses boost to trigger, no rpm or MAF.

2. Magnuson magnavolt is triggered by MAF feed or RPM and boost of 3psi. MAF or RPM is based on different models.
Pros: Adds MAF or RPM input to trigger on. Same price as KB-Boost a pump. Smaller footprint.
Cons: May blow internal diode and leave you stranded unless you use a paperclip to bypass blown diode, then you need to replace unit. Seen these replaced with KB-Boost a pumps

3. MSD programmable fuel pump booster is the most expensive $400, new and can be programmed via usb and included software to turn on at a customer defined boost. Pressure is also variable.
Pros: fully programmable.
Cons: expensive, relatively new, read that this or older model burns out pumps.

Personally I wouldn't rely on a device like any of those. I've had a close friend pop 2 engines b/c of problems with a boost a pump. Now he's just going with one real big pump.

The big problem I see with those devices is that (just like running multiple pumps) you won't know that there is a problem with the device until you are WOT and needing the extra fuel. Sometimes this can be too late. I'd rather shell out a couple hundred more now than tear down an engine do to a lean spike.

Just my two cents