IMHO Studland is a vital anchorage of great strategic importance. Poole is a hike and better suited to shallow draft and local knowledge? Swanage holding is adequate and I have used it but did read it is not all that. Lulworth is usually to rolly with swell. Weymouth has a nice anchorage outside but very exposed and would consider it more fair weather. Portland Harbour has anchorages but a bit of local knowledge helps here as well and entering at night to anchor you will have to dodge all the moored unlit boats. Studland is ideal for a tired boat wishing to get some kipp before - or after - passing through the Needles. And it is easy to use which is especially important when tired.Really, originating in the far South West but based on the East Coast, I have frequently trundled back and forth along this bit of coast line and in addition to Studland, I have ducked into Poole, Swanage, Lulworth, Weymouth and even Poole before and after transiting Lime Bay. I fully support the thrust of this thread and believe the argument doesn’t require embellishment. It is always a mistake to make a case that can easily be refuted. Such as Studland constitutes the only safe haven for miles around as this can weaken the whole argument.