Oral vs Poster vs Workshop. Which is the most prestigious in the context of Computer Vision and Artificial Intelligence?
0. Invited/plenary talk at the main conference

1. Paper in the main proceedings with an oral presentation

2. Paper in the main proceedings with a poster presentation

3. Everything else



Having a paper in the primary conference proceedings is more prestigious than not having a paper in the primary conference proceedings.  If I understand how CVPR, ICML, and the like work, that means (oral presentations and posters) are more prestigious than (workshop, tutorial, or other).

Only a small number of CVPR/ICML/etc papers are accepted for oral presentation, so having a paper with an oral presentation is more prestigious than having a paper with a poster presentation.

Workshops and tutorials are apples and oranges.  A workshop presentation is more likely to be associated with your own original research (if only in preliminary form).  On the other hand, a tutorial presentation is a significant community service, and being invited to give a tutorial is a mark of community standing.  I would rank tutorials slightly ahead of workshop papers, but I'm sure not everyone would agree with me.