I use several different glues for different applications. depends on what i'm doing.
If the part i'm glueing on can be glued on with the drop of glue hidden i tend to use Model Master Liquid Cement. works well and doen't dry too fast but still fast enough to keep going.
clear parts Testors Clear Parts Cement and Window Maker are the only way to go. though some people swear by elmer's glue i like the testors cause it dries clear.
Plastruct Bondene.. pretty much the workhorse of my glues.. love this stuff bonds fast dries faster. just am glad I don't live iout west as the label says "contains a chemical know to the state of California to cause cancer"
HobbyTown USA Ca glues.. comes in 1-5 second set time 5-10 second set time and 10-15 second gap filling version. I use this when scratchbuilding with brass, metal, resin, wire or just gluing on something that i think it would work best with.
also have some of the Amboid pro-weld stuff but I don't like it near as much as the plastruct.