Leo, here's the way I approach it usually.
In the research phase you're talking about I collect a list of competitors and add their information to a notebook for the project in Evernote. Then I have a single area that allows me to have multiple screenshots, my own notes, and anything else that might pertain, quick design ideas etc.
I usually have a separate doc that I collect general ideas in. This becomes the outline for presenting those ideas, based off of the competitive analysis, for my presentation.
The presentation takes different forms depending on the audience. Stakeholders usually get something more polished, my UX colleges I may just walk though my Evernote notebook and my outline.
When presenting, I mention the competitive analysis but usually only in the sense of opportunity spaces for us. I try to learn from the space, speak to that learning and not dwell on the competition.
Also, I avoid talking about specific interactions or features of the competitors. I want to know what those competitors are doing, look for standard patterns and interactions, but I don't want to give stakeholders a list of features to copy. In the end, I don't want the research to lead to "can't we just do it like company-xyz did?" I'd rather the conversation was about why company-xyz did something and if it's right for the product we're making with the users we have or hope to have.