Me saying that isn't supporting one system or another, quite the opposite, really.
If you're going to tune it yourself - any engine management works. Go with the cheapest (time & $$) proven option.
If you're going to hire someone to tune it, you want to pick the system they are willing to tune (some guys won't tune megasquirt or FAST, but would prefer factory engine management from ls1 or hemi).
If you've got a stock motor and you want to keep it simple, use a stock computer from hotwire or the efi source megasquirt option (comes with a dialed in 6.1 tune).