pinchblack pepperfreshly cracked is always the way to go!
Peel and chop the mangoes and avocados to even sized pieces and add them to a large glass or plastic bowl. (P.S. I wouldn't recommend using a metal bowl because it will change the flavor of the lime juice, making the salsa bitter).
Add all of the rest of the ingredients to the bowl. Stir with a spatula until evenly combined.
Refrigerate at least an hour before serving so that the flavors can soak. Enjoy!
If you like spicier foods, you can leave the seeds in the jalapeño when you chop it up; Be sure not to touch your eyes after chopping up the peppers though.