Craftsman has always been my favorite. For the average household (at home mechanic) they're great but I would only buy them in large bulk sets. Not in small individuals sets. If you keep your eyes open, they will have some sets around Christmas for 1/2 price.
As far as cordless tools go I like Crastman but I like DeWalt better and again buy the largest set you can afford that comes with the most batteries. Also, a word of advice on the batteries....Dont leave the batteries on the chargers, charge when needed. It drains the life way faster than normal use, even if it states that the batteries has no memory. I have quick charger that will charge a battery in less than 15mins. I have had the current batteries I got with my set for 7 years and they still last for about 4-8 hours of normal use.