I'm not sure if this is right place to put this... If it's in the wrong thread then feel free to move it.
Anyways, since I have yet to see a walkthrough in plain English for Little Busters!, I figure I will put one up here, using the translation found on TL Wiki. When they release a new patch, I will put up the new route here as well.
This is the order in which I played the game: Rin 1, Komari, Kurugaya, Mio.
My guide assumes that you have not yet completed a single route (good end) and will follow it. You can play the game in whatever order you want but some choices may be new or different depending on what you did.
Keep in mind that these choices are not definite! You don't have to make these exact choices to get to the good end of a route. These are just the choices that I made.