Microsoft To Do is the best all-around option for a Windows to-do list app, offering a simple and intuitive interface along with powerful features like collaboration and integration with other Microsoft apps. Todoist is another top choice, known for its cross-platform syncing capabilities and robust organization features. Amazing Marvin stands out for its deep organizational structure and ability to help users overcome procrastination. TickTick blends simplicity with power, offering desktop widgets and integrations with third-party calendars. WeekToDo is a privacy-focused option that uses a day-by-day approach to task management, while Lunatask provides goal-oriented task management with multiple features like note-taking and habit tracking. Sleek takes a text-based approach, keeping the entire to-do list in a single text file. These apps offer varying degrees of customization, accessibility, and integrations, making them suitable for different users' needs and preferences.