Hi! I graduated from UAH in May. Unfortunately, I can't really compare it to the program at Calhoun because I didn't go through the program there.
However, I would guess that both programs are difficult. I think any nursing program probably will be. Still, from what I gathered talking to Calhoun students I bumped into in clinical, there are some differences. I think it just depends on your goals. Since you are planning to go to grad school, I would probably go to UAH, because it seems faster to do that than bridging over.
I really loved my time at UAH, and I had an excellent experience in the nursing program. I found the instructors to be very supportive and caring as long as students put forth effort. I was very satisfied with my clinical experiences. I will say that with some instructors you will get more opportunities to perform skills and give meds than with others. My instructors were great about this, and I felt that I was able to do as much as I wanted to do.
Before I started nursing classes I read a lot of horror stories here about mean clinical instructors who berate students, try to fail them, generally make their lives miserable, etc. and I was scared! I can definitely say that I never encountered anyone like that at UAH. I thought the classroom and clinical instructors were very encouraging and felt that they wanted us to succeed.
I had to make the same decision as you. I started my prereqs at Calhoun and switched to UAH after about two semesters. For me, it was the right decision. I had a blast taking prereqs at UAH. Nursing school was a wonderful experience for me, and my pinning and the day that I found out I had passed NCLEX were some of the best days of my life.
Please feel free to PM me if you have questions.
Now, if only I could find a job!