A dovetail is just that-- been used for many years. If cut properly,
they lock together quite nicely with a minimum of glue.
"like a 90 degree cut, for both pins and tails, would be fine for a
load, light stress" situation..."
The description above is for box joints -- easy to do on the TS with a
simple jig don't bother with the bandsaw on these. Either will work,
dovetails are more elegant.
For a low load light stress situation you can use simple rabbets & glue
with nails- particularly if you don't care what they look like & have a
lot to make. You could also look at the drawer lock mitering bit for
routers (never used one), but the result looks interesting in the