This came up a while back. Here are my thoughts. You can find the whole thread at https://www.coloradofisherman.com/for...topic=26163.15
"I've had both, and I've liked both but for different applications.
Back when I did more shallow water bass and walleye fishing, moving parallel to an irregular (usually rocky) shoeline I preferred the cable drive. It turned faster than the PowerDrive and so you could run into very shallow watedr to retrieve a snasgged lure, switch the motor 180 degrees and move the power to high all in a second to change your direction and avoid a rock, etc. It was very nimble. However, if you left the motor on and took yolur foot off the pedal, the motor head tended to turn, ever more sharply and the boat would not maintain a heading, so it had limitations fighting the wind, etc.
Now I do less close in shoreline work and more open water and I love the Minnkota PowerDrive V2 with Copilot (remote wireless steering, power on-off, and speed). Wherever you have the motor pointing when you take the foot off the pedal that's where it will stay. So it's very useful if you're trying to keep the bow into the wind while you fight a fish, or to make sure you run straight as you check a piece of structure, etc. But it does turn a lot slower than the cable drive.
So there are trade-offs. But each has its strong points."