The Middle East has been cooking for so long, it's impossible to point at a faction that is the "Good Guys". But right now, one faction is hell-bent on exterminating another nation's people, both military and civilian, so it should be pretty fucking obvious who the worst "Bad Guys" are. There are no good guys, only victims.
You should read Ramzi Yousef's statement at his 1998 trial. Terrorist factions like Hezbollah and Hamas exist only because Israel is consistently refusing to make peace through diplomacy.