Goal for 20min. presentation at math conference I've been invited to give a 20 minute talk at a mathematics conference in a couple months.  The audience members all work in my field, so they will be familiar with most of the terminology and background.  I have plenty of material to pull from a preprint I've already submitted to journals, and it seems I have two reasonable options:

Option A.  Present everything to communicate the over-arching theme of my  research.  I could provide several very minimal proof sketches along the way.

Option B.  Present one very interesting result (with its lemmas), with more detailed proofs.  I could then "sprint" through some related results at the end, or avoid them entirely.

Which will be most valuable to the audience members? Which will make me "look the best"?
If you have one very interesting result, then I would go with focussing the talk around that. The alternative of trying to cram multiple topics into a 20 minute would be very difficult because that's not a lot of time. Your talk is more likely to be remembered if you present one very interesting result.