Depends. If you're doing soil the general rule is the bigger the pot the bigger the plant (within reason). BUT if you live in a cold climate with a short growing season you may not be able to get the soil to dry out enough to for the plants to wilt before the next watering. I had this problem with all of my chilli's from Habs and hotter. I had fantastic sized plants in 5 gallon buckets, but they had no heat. Although the smaller pots produced smaller plants and less pots, the pods were way hotter.
I'm going to try out a few ideas with Coco and see how it goes.
Neil