Pulse Rifles and maybe Scout Rifles. This are two viable gun choices there are right now. Everything else is worse and it doesn't matter what you say. You can only win using different type of primary if your enemy is way worse then you. I'm doing Crucible weekly now and I'm stuck at hand cannon part and oh boy it is frustrating. Not only Pulse Rifles are dominating but Hand Cannons were needed into oblivion and with the current frequency of balance patches this isn't changing any time soon.