Scotty's have a faster retrieve rate, use less amperage, have fewer moving parts, and include a lifetime warranty. When I was selling sporting goods, we would sell Scotty's 3:1 over Cannon and 10:1 over Penn. I also never had one return. I would guess that most, if not every Cannon electric I sold came back but that was in the mid-nineties. Maybe they are better now.
But there is no question in my opinion.
Good Luck
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In the legend of King Arthur, the Fisher King was a renowned angler whose errant ways caused him to be struck dumb in the presence of the sacred chalice. I am no great fisherman, and a steelhead is not the covenant of Christ, but with each of these fish I am rendered speechless.