I'm not an expert either. I have a 20 year old gas Strikemaster that still drills holes like mad. I would guess that most of the newer Ice augers will do a great job. I like a 10" hole, for trout and pike fishing, but that may not be necessary. If you are opening holes in a permanent house and you don't have lots of holes to drill an electric is pretty nice as you don't fill the house with gas fumes. Had a buddy that had one and it worked great.
Doug Johnson