S10 is quite big so beware. Fulwood is S10 and that is absolutely lovely - I lived there happily for 23 years. Low crime, no litter,clean air, great community, nice kids - can't fault it. Fabulous views as well if you're high up.
Broomhill is also S10 and that's full of students.
S11 isn't as nice although it depends where.
Hope that helps