EFI ECM: which would you choose and why?

I was told Megasquirt was more akin to a science project, open source is nice, but every option seems to ba an add on. GM EFI is almost turn key once you get your wheel in place or whatever ut uses for initial cam timing, and there are loads of places that will tune it for you. EEEC4 is self tuning in as much as camshaft selection goes. FAST and the other PROxxx boxes are self tuning too, but I dont like the TBI type wet runners that they offer. I have a 1st gen Edelbrock I ave yet to install, but the chip is already burned for my cam so it should be a bolt on. The 2nd gens are more tuneable, but both are rather expensive along with Accel and that other one I cant think the name of. Holley Projection is cheap but anolog (old) or buggy (old and new) and QC was never high. Good luck. Harness making is EZ, just have plenty of wrap (not electrical tape, too gooey) and time, and a good splicing technique (solder and shrink wrap) Good luck, keep us informed!