"I guess my main question is, what were the key things that made Wimbledon stand out for your DD? And if were you deciding between Putney and Wimbledon, why did you opt for Wimbledon?"
We had a slight preference for WHS (mostly irrational and based on gut feeling): my other half was completely won over by the open day (that was before Covid time... seems a looong time ago now), I missed it. I attended an open day in PHS and had more mixed feelings: in part. I did not like the road with heavy traffic /pollution hotspot in Putney.
Also DD plays Hockey, and not Lacrosse.
We liked, above all, the (apparent) atmosphere from WHS (confirmed for us until now!): Girls seem so supportive of each other, not clicky at all, not showy, not pushy /alpha type, so relaxed about their appearances (very often in tracksuits), with a healthy work ethic. But these are all personal impressions, maybe other parents felt the other way round from visiting PHS & WHS. Anyway, that's why we decided on WHS.
Having had our first round of parents-teachers evening and based on what my DD tells me, I find teachers all hugely available, supportive, and working hard to make their subject stimulating.
At the end of the day, having this choice is a great position to be in, and I'm sure she'll flourish in any of the 2 schools. Congratulations to her! :-)