I feel that the CBSE Board is much better than Matric because of the following reasons:
1. In CBSE Board, the student's understanding and aptitude are checked while Matric Board pushes the student to mug-up the answers. This has a great influence on the analytical thinking of the students.
2. CBSE Board is of a national standard while the Matric Board is dependent on its state.
3. CBSE Board study pattern has a broad and in-depth curriculum which prepares the student for exams related to IITS, NITS and AIIMS.
Hope this helps!