The former usually includes full voice, exquisite illustration, and longer scenario. On the other hand, the latter has variety in its style, and is more cost-effective. What do you think?
At the moment, I prefer games created by doujin circles. While I enjoy games created by industry leaders, the games that I actually enjoyed the most are from circles. Games like Succubus Rhapsodia are not any worse than games produced by Eushully.