I'm a fan of a 14.4v drill. If I need to do any work that needs more power, I use a chorded drill. (Granted, not every job site has electricity; that's why YOU'RE there.) BUT, I use 2 batteries. It only takes about an hour to charge. Hence, I'm never w/o power on my 14.4. Also, I find the 18v heavy, bulky, and not too balanced. It may come to a personal choice for that.