Is your child academically below average? If so, you might want a school with a high added value.
Kids who are reasonably bright will do fine anyway.
Realistically, looking at results or value added tells you nothing about whether the school will suit your child and allow them to reach their potential.
Visit both, discuss your dd with the school ( does she have sn, what are their policies on sn -often the schools that are looked down on have great sn facilities) is she working above national average, in which case how does the school cater for more able pupils (this is sometimes an area where schools in deprived areas struggle)
Is she very shy? Does she make friends easily? Can you walk to school?
You can pick up a lot just by walking around and seeing whether you think your child would 'fit' in the school.
Fwiw, we were told by a ht not to send our dc's to a particular school, because although they could cater for them academically, the peer group had a number of issues that would make the social side v difficult (they were coming out of special measures and were working v hard on behavior management). So she told me to try some other schools and maybe come back in a few years.
Dd1 did y1 in a school where English was the first language for maybe 30% of the pupils, and most children turned up speaking no English at all. They had a great eal programme and the facilities and results were amazing.
Just go and visit and consider the setting in terms of your individual requirements for a school. Results mean nowt, really. Not on an individual level.