I keep 3 glues on the bench.
1. CA(super glue)...this is good for attaching metal (PE) and resin parts, as well as the "fiddly bits"(antennas, pitot tubes, things like that)
2A. Plastic cement...we've come a long ways since the old "tube glue". I am a recent convert to Tamiyas "Extra Thin". Come in a square glass bottle, with a green lid. Just hold the parts together and touch the applicator brush to the joint. Capalary action will suck the glue into the seam. It's good stuff!
2B. Also plastic cement. I was using Testors liquid cement, before switching to Tamiyas. It comes in a triangular shaped container with a pointy spout. Also good stuff, but takes longer to set up and can be a bit messier.
Your plastic cements are for joining plastic to plastic...it melts the plastic a little, and as you squeeze the parts together, it "welds" the plastic together...they are worthless when it comes to resin and metal.
3. Clear parts glue. I use Testors, again in the triangle bottle. The only thing I use it for is clear parts...pretty worthless for anything else. It is plenty strong enough for gluing down canopies, however, I will use CA instead, if the canopy is to be opened (go very sparingly, CA will fog up a canopy if ya get too much on there). This glue also works for filling in small gaps, such as around a canopy or along a wing/fuselage joint...only good for small gaps. You do have to wipe away any excess, this stuff does not sand away well.