The ME Finder S predates the AE Finder S. Someone summarize the Cheung book on Bronicas...
"* ME finder S - This is sometimes referred to as an AE finder (by Cheung). Gives aperture priority with a centre weighted average metering. Only provides under/over exposure indicator LEDS in the viewfinder.
* AE-i - Provides spot & centre weighted metering modes with aperture priority. Also allows for +/- 2EV compensation via a dial on top of the prism with another +0.6EV compensation available with a small dip switch. The AE-i prism will display shutter speed on a small LCD display within the viewfinder.
Another feature of the AE-i finder is the ability to do "exposure lock" when using mirror lockup."
I have the AE finder (not the -i), it's center weighted, and displays shutter speeds via LEDs in the VF when I half-press the shutter button. Only has two switches-- "on/off" and "Manual/Auto". In manual mode, it displays the recommended shutter speed, but it blinks.
Interestingly, it will hit shutter speeds not available to the shutter speed dial-- I've done 30+ second exposures with the AE finder.