I rent from National almost every time I rent (which is about 4 or 5 times per year).  They always have newer cars with good selection, and their Emerald Club benefits are much better than any other membership club (except maybe Hertz Gold, but I don't rent enough for that). 

My family and I have two priorities while traveling -- finding competitive prices and saving time instead of wasting it at a rental counter.  On most occasions, we are in our vehicle and on the road in 10 minutes or less, with little hassle and good service. 

Now, that is not to say that we haven't had issues in the past. ...