My son was at Eton 2012-17. I can say quite categorically that not a single family we knew there chose the school based on the A level results table. In his house in his year two boys were on full bursaries and another had fee assistance, two boys were sons of OEs, two were British Asian (one of whom was one of the bursary boys), one was HK Chinese, two were superb musicians (one of them had an international profile and was invited to play for the Queen at Windsor). Two more boys joined in C block (6th form), one on a full scholarship*. Most of us were middle class families of varying degrees of wealth. In other years in the house were two Palestinian boys and two boys whose fathers were billionaires.
My DS discovered that his 'thing' is languages. Eton offers teaching in more languages than any other school in the country as far as I can see, although I'm happy to be corrected. Their facilities are incredible, language labs, newspapers and tv channels in all these languages were available and used in lessons. As well as the two Classical languages, he learned French, Russian and Portuguese. Every boy who was studying a language at GCSE level and above had to arrange 40 minutes a week in their own time for conversation sessions with a native speaker (a good selection of teaching assistants are always on hand). DS was pretty fluent in French at 16 and had great fun on our holidays in France where the locals made a huge fuss of him. There were also exchange visits, one of his friends went to Japan for two weeks and had to spend a week in a Japanese school, commuting there on public transport in his Eton tails.
Then there is the drama, the 24 hour play weekend which rocked the school, the Twelfth Night set in a 1980 Glastonbury, the concerts which you would pay good money to see at a professional concert venue.
The school trips. Moscow and St Petersburg with the scary Russian beak. The design group trip to Germany (DS only did design as a senior option - they rebuilt the master's old motorbike).
Tutor group meetings in the tutors home, sometimes cooking with the family and playing with the kids, discussing books or films, fun things like go kart racing trips or theatre trips (if a boy has a famous actor as a dad you can get tickets even for that sell out show he's in). DS's tutor took them to see Germaine Greer's one woman show in Windsor as he wanted them to hear all about feminism straight from the horses mouth. Unfortunately she sabotaged him completely by announcing to the audience that she wasn't going to take any questions from men.
This is just a taster, so with all that how much of a flying fuck do you think any parent gives about where Eton is on the A level results table? I don't think many people give much thought to connections either, many of the parents have good connections anyway.
*I spoke to his mum on the last day, as a single working mum she found it difficult to get to house and school events. He applied for the scholarship himself and didn't even tell her! It was a shock when he announced that he was going to Eton. He also got to Oxford.