Niagaras are good boats, as are Alohas. The Swift looks interesting but I do not know anything about them.
Any boat can be damaged by a good hit. The trick is not to.
The Westerly doesn't show a passageway - rare on a 32' boat. There are cockpit lockers on each side which would make it impossible on a boat that size unless it had a lot more freeboard. Visually it will seem small inside. Here's a link to the Westerly that shows the layout a lot better. Great boat for a couple who want the kids to be in their own cabin. You would probably only use it for storage. Westerly Renown ketch archive details - Yachtsnet Ltd. online UK yacht brokers - yacht brokerage and boat sales
Also the Westerly is only 2" wider than my CS27.