Nightmare.

Chargers:

AC1) Motorola DC4050US0301 5.1V DC 850MA
AC2) AT&T 03577 5.0V 1000ma
DC1) AT&T USB VPC03578
DC2) AT&T USB + MiniUSB MV302927

Cables:

M1) Motorola SKN6378A
M2) “Motorola” SKN6238A
M3) Monoprice generic microusb

Dead Phone, AC1, M1 OR M2 OR M3
Green light on Phone, OS starts, displays charging battery

Dead Phone, AC2, M1 OR M2 OR M3
Blue light on AC2, Green light on Phone, OS starts
Green light / OS cycle every 15 seconds

Dead Phone, DC1, M1 OR M2 OR M3
White light on DC1, Green light on Phone, OS starts
Green light / OS cycle every 15 seconds

Dead Phone, DC2, M1 OR M2 OR M3
White light on DC2, Green light alternates on/off on Phone

Phone on, AC1, M1 OR M2 OR M3
Green light on, charge symbol in battery on display

Phone on, AC2, M1
Blue light on AC2 for five seconds

Phone on, AC2, M2 OR M3
Blue light on AC2
Green light on, no charge symbol in battery on display

I have an AT&T AC charger at work that I believe works as well as the stock Motorola. The AT&T AC charger here at home, listed above, is a “five star” model that consumes 0W when not charging, I assume that is what the blue light turning off indicates. Hopefully the combinations that keep the green light on the phone on are charging, just very slowly, and are still somewhat useful. More to come.