I use CA as much as possible. It is light and strong but I use it mainly due to my limited building time. Using an alphatic resin (white glue) is acceptable for most glue joints if you have the time to spare and it will save you some money and it does sand easier. I strongly suggest you not use CA or alphatic resin for firewalls, landing gear blocks, wing joining, attaching tail surfaces, etc. Only epoxy should be used in those areas where high strength is required. Better to be safe than sorry.