Shrewsbury vs Marlborough

[Alexis705]

Trying to find a school for DD (6th form 2015), does anyone have any thoughts on these ones?
Wondering what the is boarding like, if pastoral care is good at either, what the are students like, if the teachers are good etc.
DD is quite intelligent and reasonable sporty but wouldn't be bothered if the sports facilities weren't so great. She's also arty/musical and a good art department would be important to her.