At my company, we've just completed a large survey of features that we might want to add to our web application. Now we want to share this list with about a dozen (non-technical) product stakeholders (sales reps, customer support, etc) to get their input about priority. There are about 20 features under consideration. For now, let's suppose that all stakeholders are equally important, and we're not yet considering implementation difficulty. We just want to know what features are important to people.

My current best plan is to put the items in a shared spreadsheet and ask everyone to vote on what their preference would be. To make this manageable, we could have everyone:

• Specify their top 5 (or N) desired features
• Rank ALL features by priority, but with low granularity, like Low/Medium/High, and maybe you can only have a maximum of 5 "High" votes

Can anyone recommend a good way to do this, or suggest a better variant of the above?