1- Team would come first. Look up the team and see if they are reputable.
2- Project utility. Is it a new concept? Does it solve any digital or real world issue?
3- Development and team activity. Try to see for how long the project is running and what they have accomplished, are they slow? Fast? Updates with frequency?
4- Marketing efforts. Do they have a strategy to promote the project? Because in this days marketing is almost everything on a project.
5- Community. Does it have a big community?

A project that currently checks all the boxes for me its Deeponion, phenomenal development team, actvity and community.