I agree with farel2. Smaller plants are always easier to work with and usually have less problems. It depends on a lot of factors though too, sure. As a rule though, smaller plants are usually indica dom & taller sativa dom. Indicas get bushy and get FAT buds. Sativas tend to get airy and wispy buds. You can get a bigger over-all yeild from a 10 ft sativa as opposed to a 3 ft indica, but I would only recommend growing this huge sativas outdoors where they "belong". You can make either plant healthy, its just a matter of which is easier to work with (espically indoors).