COT or ROTC

Greetings,

I am a pre-nursing student with ten years of prior Air Force service. I just took my entrance exam and crushed it! I am now competitive for a summer start in UNLV's program. I also want to continue serving my country in the Air Force. Now the dilemma, I can start school this summer or I can attend Field Training for AFROTC. To all of those of you who have completed COT recently or have knowledge, should I remain in the ROTC program, adding two semesters to my graduation date? Or should I just complete my BSN and attempt to commission through COT? Both have appeal but I need to make my decision by Friday. Thanks in advance for any advice.