1: Tony and Ziva's undeniable chemistry. Their witty banter and undeniable chemistry make them the ultimate power duo on NCIS.

2: Their loyalty and trust. Tony and Ziva's unwavering loyalty and deep trust in each other set them apart as the better half of NCIS.

3: Their shared history and bond. Years of working together and overcoming obstacles have solidified Tony and Ziva's unbreakable bond on NCIS.

4: Their impeccable teamwork. Tony and Ziva's seamless teamwork and ability to anticipate each other's moves make them a force to be reckoned with on NCIS.

5: Their complex and layered relationship. The complexities of Tony and Ziva's relationship add depth and intrigue to NCIS, making them the show's better half.

6: Their emotional depth and vulnerability. Tony and Ziva's emotional depth and vulnerability bring a unique and heartfelt dynamic to the world of NCIS.

7: Their captivating on-screen presence. Tony and Ziva's on-screen presence and magnetic chemistry draw audiences in, making them the standout pair on NCIS.

8: Their shared understanding and connection. Tony and Ziva's shared understanding and deep connection create a bond that transcends words on NCIS.

9: Their unforgettable moments and impact. From tender moments to intense confrontations, Tony and Ziva's presence leaves a lasting impact, solidifying them as the heart of NCIS.