OP here - thanks PP for some good insights.
Your point about parents talking about moving but eventually staying is a good one. I'd add that people who move to DC proper in the first place are perhaps more willing to take urban problems in stride, and therefore more likely to take a chance on an up and coming public schools. Less risk averse than some surburban dwellers. Even west of the park.
The types of positive comments I hear about Deal in my conversations with current parents are along the lines of: improved a lot; does a great job considering what they have to work with; racially diverse; we were pleasantly surprised and are very happy there; Sally loves it there; don't worry, your kids will do fine there (or anywhere). Views on Wilson are less positive.
The negative comments I hear about Pyle/Whitman are along the lines of: spoiled/elitist/arrogant/competitive. No-one criticizes the academics, college-readiness, or college admissions. I don't know anyone with kids in the Rockville HS you attended.
We are all different and when we hear the above comments (and study the school demographics, college admissions and testing) we draw our own conclusions.
We haven't talked about Fairfax, but parents there are probably the most enthusiastic of all - raving about the advanced/enrichment offerings and so on. It does truly sound like educational nirvana to me. But who wants to commute from Fairfax??!!
BTW I don't usually get into personal info on the net but in answer to your questions this discussion is not academic for me - Deal/Wilson is one option... as is a move to the 'burbs.
This thread has moved on from my original DCPS review questions... it's helped me a lot, and I think I'll leave it here from my side. Thanks to all the posters for the thoughts... I do sense a lot of optimism about Deal/Hardy/Wilson which is encouraging for me. I think the next big event is the review and we'll see what that does for better or worse.