I am Callacas and I try to only watch anime that I like. I know that sounds odd, but most people would sit through the entire series of a show that they hate just to finish it. If I don't like it, I don't watch it. If the first few episodes don't entertain me, then chances are the rest of the show is not worth watching.
Also, It might be worth mentioning how I rate my anime.
It largely depends on where I am rating it. If it is on my reviews then I actually am serious in the rating of the show or manga, even if the review isn't. When I review an anime I average -with no less than a calculator- all of the criteria for the overall score. Everything is then rounded up.
If I am rating the anime on my list, then it just goes by how much I liked it. Death Note? 10. School Days? 1. That's how it goes on my anime list.
My Manga list is different. My manga list is rated more seriously than my anime list and I do post mini-reviews in the tags section of my manga list. While the tags section in my anime list is more for arbitrary comments or bitching if need be.
Battle Shouonens that I have seen
Note: what I mean by having seen a battle shounen I am talking about any shounen (whether they are in my dropped list or completed or currently watching list) that I have seen enough or read enough of to form an opinion about the series.
Blue Exorcist (manga)
Soul Eater (manga)
Yu Yu Hakusho
Medaka Box (manga)
D Grey Man
Rurouni Kenshin (manga)
Attack on Titan
Hitman: Reborn! (manga)