I second a Le Crueset pot. We have had one for 8 years and use it t least once a week, sometimes 2-3 times. It is awesome because you can start cooking on the stove, then put it into the oven, and I you have leftovers you can put the whole thing in the fridge (once it has cooked down). You can then get it out the next night and put it in the oven and heat it up again.
I also like my kitchen aid but only use it once a month.