For me, it's Cost effectiveness. We once chose a cheaper tool that ended up saving us 30% in project costs, despite being less user-friendly.

I'd pick Community support - a strong user base often means better long-term maintenance and updates.

I'd pick Community support - often it's the community that helps you troubleshoot and find creative ways to use a tool, even if it's not immediately obvious from the docs.

I'd pick Community support - often it's the unsung hero that makes or breaks long-term adoption, but I'm curious, did you consider 'Scalability' as an option?