Hmmmmm ... well - ultimately it all depends upon what you want to do.
I was an inner city teacher for 5 years. They were five of the most difficult (and rewarding) years of my life. I have also spent several years in suburban schools.
The first thing I think you should know is that because of the socio-economic demographics in the inner-city schools, you need to be very patient. You will need to be calm and caring. You will find that some children come to school with a great deal of emotional baggage. Some don't have adult "role models." Some are not consistently fed at home - and rely on the free breakfast and lunch programs offered by the school. When I taught 4th grade in Austin, some of my kids were already being recruited by gangs. These kids were given cellular phones and served as lookouts for the police. If they saw someone who looked like a police officer, they hit the speed dial to alert the dealers. During my last year as an inner city teacher back in 1991, the police actually arrested one of my students for dealing drugs on his school bus.
It is very difficult for some of these children to do well in school because their basic needs - food, clothing, shelter, and having someone who loves them - are not always there.
I have had children who were homeless. These children didn't know where they would be spending the night. I have had children come to school in the dead of winter wearing the same ragged blue jeans and t-shirt that they wore in September.
Inner-city children (as a whole) - tend to be less academically proficient than their middle class suburban counterparts.
Part of this seems to be due to concerns about basic needs - and the lack of role models. Other children are tremendously impovershed. They may not have the facilities at home that many of us take for granted - a desk, a lamp, a chair, some paper, and pencils to write with.
In the Rio Grande Valley, I had kids - usually girls - who had household chores and babysitting duties to do after school. Some of these children were even held out of school to help Mom when she felt overworked taking care of the younger children.
On the otherhand - if you can win the trust of these children - they will be tremendously appreciative of the time you spend with them. Even simple things like eating with the kids in the cafetaria or talking to them one on one during recess seem to be greatly appreciated.
In general - the suburban kids tend to be more academically oriented. They are more likely to have some stability in their lives with regards to having basic needs met.
This is not to say that suburban kids are always wonderful.
Surprisingly enough - many of them also lack adult role models.
I have had kids from families whose parents were both on the professional career track. Their kids became "latch key" kids and were enrolled in afterschool programs because Mom and Dad had to work.
Some of these kids have acted out or deliberately failed to get parental attention - the idea being that some attention (even for bad things) was better than no attention at all.
In relatively affluent families that are supported by one parent's paycheck - the stay at home parent can sometimes be a big pain in the you know what.
I once had a mother who drove her 4th grade daughter to school. She sat with her outside of her classroom until the bell rang. She was at the door with a fast food lunch in her hands when it was time for lunch. She was at the door when the bell rang for dismissal in the afternoon.
Her favorite words always seemed to be, "Mr. Chin, do you have a moment?"
The woman questioned every grade the child got.
She questioned the child's assigned seat in the classroom.
She complained about the students who associated with her during recess.
Amazingly enough - the parent didn't annoy me. I wound up feeling tremendously sorry for the kid because the mother was very clingy. It seemed to me that the closer she tried to hold onto her child as she grew up, the more likely the child would be to rebel and push away from her mother during her adolecense.
Ah well ...
Anyway - there are pros and cons to working in either inner city or suburban settings. Ultimately the decision about what to do will be up to you.