I'd say that many scholarship programmes are a bit of marketing tool, as are the scholarships,nwhicwhich are often not much in terms of fee remission these days. Often less academic schools offer lots, hoping the kudos will attract students who will get offers from more academic schools and be unlikely to choose them without the scholarship.
It's iftennthe case that although schools make a big thing about the scholarship programme, the activities in offer are actually available to others if they want to get involved too. Good schools challenge and provide for all their students and not just the scholarship ones.
And I'd say that it's not just splitting hairs to distinguish between a 70% A*/A school and a 90/95% one. There are loads and loads of schools in the former category (Good schools- don't get me wrong) and far fewer if the latter type.
Think too about which you would choose without the scholarship offer. I'd try to see the scholarship as a red herring (unless it makes a real financial difference) and consider if you'd have been seriously considering the scholarship school as an offer holder for the other school, if there was no scholarship.
Of course,mig you really loved he scholarship school more or thought it was the perfect fit and had things you didn't like about the more academic school,not hen fair enough, but as you don't and it doesn't seem the money is a vital factor, personally I'd go for the better school. The cohort could be really quite different. The scholarship school does get good results but will have a much wider range of abilities and that can have an impact on the curriculum and general ethos and speed of learning. If the more academic school is very hard to get into, I'd see getting a standard offer as the equivalent (or probably better) than the scholarship offer to the other school.
Good luck in choosing.