I have a Little Pink Pig heat gun and I really like it. I have had it for a long time and am not even sure they sell them any longer. It still works great.
I also have the Ranger tool and I am not impressed with it. Sometimes it will not even melt embossing powder... sometimes it does. It may be faulty. :(
If I had to get a new one I would get the Hero Arts heat tool. I have heard nothing but reviews about it.