Here are some of the advantages of Linux that are often cited when comparing Linux with other operating systems: (1) Low cost; (2) Stability; (3) Performance; (4) Network friendliness and security; (5) Flexibility; (6) Compatibility; (7) Choice; (8) Fast and easy installations; (9) Multitasking; (10) Open source;

For more details on each of these advantages see here.