Teva Pretty ruggeds are my favorite also, they have a great cushioned footbed and padding under nylon straps. I have circuits (the walking sandals) which are also very supportive but despite getting them wet on occasion, I don't consider them waterproof because of leather footbed. The hurricanes and terradactyls both seem fine (I have looked at both in stores) but neither has cushioning under the nylon straps like the pretty ruggeds do. The terradactyls have a "bumpy" footbed that I don't care for, but my DD says is fine for her. I found pretty ruggeds on several sites by searching yahoo shopping. One site which I remember had them for $40.00 (I think) was Frugalfootwear.com.
Good luck!