I have worked both shifts. I will share my experiences with both:
Evening shift SOUNDED good to me...I get to sleep in, I can take my time getting ready, I don't have to fight traffic...OH YEAH BABY!! Then reality hit. When I arrived at 1100, I was doing lunch reliefs until around 1430. Then I would take my own lunch. Then I would relieve the nurses who went home at 1500. And relieve the ones that went home at 1700. I didn't really have a 'home', but I was taking over for someone else, which meant that I had to double check all of their work to make sure I didn't miss anything. When my shift was over, it took me quite a while to decompress when I came home, and oftentimes would not fall asleep until 0300. I found that I was sleep deprived, because I was getting an average of 6 hours of sleep per night. And I didn't get jack done around the house.
Night shift was only slightly better. I liked working 12 hour shifts, but found it very difficult to adjust to being awake during the day on my days off. My body was confused and I lost any sort of circadian rhythm that I had. I started to get depressed, missed my husband, and missed the SUN! My friends did not understand that they couldn't call me during the day because I had to sleep. If I wanted a glass of wine at the end of my shift (which was at 0800), my husband would look at me completely aghast and say, "I think you have a problem if you are drinking first thing in the morning." I had to remind him that his morning was my night time. I gained weight. I felt run down a lot. When I was done with my last night shift, I would try to get lots of stuff done around the house, run errands, etc. Sometimes I would stay up for 24 hours just because I didn't realize that time had gotten away from me as I was completing chores, going to meetings, and running errands. Which meant the next day was pretty much shot.
I figured out that off shifts do not agree with my body. I am a closet morning person, but I didn't know it until I worked evenings and nights. I am MUCH happier with set routine working days.
I hate to sound like a downer, but I wanted to give you my perspective. Everyone has their own 'body clock'. Mine just didn't like nights! I am sure that you will find nurses on this site who LOVE nights and can tell you all sorts of great things about working nights and evenings.
Reading different perspectives and experiences from members of this site is what makes allnurses so wonderful. I hope that you get some great feedback and can make your decision based on your lifestyle and 'body clock'. Good luck to you!