It doesn't vary much as there are only a few manufacturers except in viscosity. Get the name brands though like Loctite, CA Plus etc. Super glues have a very short shelf life, when you buy the cheap stuff, no telling how long it has been laying around in some warehouse and it gets thick and loses any ability to actually glue stuff together. Be careful with your solvents as well as lacquer thinner/acetone will dissolve it or soften it. One trick when using superglues, while you can buy accelerators which instantly set the glue, baking soda works just as well and might get you out of a pinch. It will leave a white line that may not be desirable if exposed but if is in a hidden area might save the day. Personally, I stay away from CA glues, I prefer Titebond III as it makes a more invisible glue line, is more forgiving and seems to last longer. I realize some people like and swear by it and have outstanding results.
When I was in the Air Force in the early 1970's, some genius decided we needed a 1 gallon can of super glue to work on Flight Simulators. (?!) It was amazing how a bunch of bored guys on night shift could get into so much mischief so fast. I always wondered if that Colonel that forgot to lock his office door one night, ever got that Penthouse centerfold off of his floor.