That is exactly my play style too!!
I don't worry about 'true' routes and 'bad' routes because I aim to play them all anyway. I always think it's interesting where my choices lead when I make them without any guide at all. Then, after finishing that first time, I go back and use a guide to get the routes I'm most interested in, and then keep using the walkthrough to complete the whole game.. I always have to complete it, I'm a perfectionist like that ^^;
Also, as some people have said, the 'bad' endings can be some of the best, especially in things like School Days XD Well.. if you like gruesome endings that is..