All the courses you have mentioned are great in there own way and have respectively good careers ahead. Now if you go for the course of BSc Cardiovascular Technology, then after passing the course, you will be able to be a paramedical staff in any hospital. So just after BSc the job perspective is better in BSc Cardiovascular Technology. Now, if you go for the field of Biochemistry & Neuroscience, the fields are mainly research based and you have the most relevance in the academia sector.

So now depending on your interest and the goals, you have to select the field best for you. All of them are great in different levels.

For more information regarding Cardiovascular Technology consider the link below:

https://www.careers360.com/courses/cardiovascular-technology-course

For more information regarding Biochemistry consider the link below:

https://www.careers360.com/courses/bio-chemistry-course

I hope this helps. Wish you a great eve!