I completely agree that fixed scopes are the way....but this is an individual decision. As for variables, most people tend to use too much magnification, anyway, which only handicaps their shooting (higher magnification only magnifies small movements, which we ALL cannot eliminate completely, with an apparently closer view as the only advantage).
Obviously, shooting distance will govern the practical choice of magnification. 4X is plenty usable out to at least 200 yards, but not so useful on small targets at 600 yards, for example. 9X, the top setting on the most popular variable scopes (3X - 9X) is ridiculous and unnecessary at less than about 400 yards.
The "rule" I follow is 1X per 50 yards distance. Since I have always kept my (hunting) shots to 200 yards or less.....4X has always been perfect for me. I have used a 2X scope before, and actually prefer it over 4X.....but it is a handicap beyond about 125 yards.
The other issue for me is size and weight. I HATE a huge telescope perched over the receiver of my rifle, making it top-heavy, etc. So, a very compact scope is the only way for me.....or none at all.
Of course, to each his own. What everyone else does is their business.