Second priority: Take your kayak with you when you purchase your skirt, and only buy one which you have personally tried on YOUR kayak. There are amazing variations in sizes, shapes, etc. even between skirts of identical brand, model, and size from reputable manufacturers. Likewise, there are variations between kayaks of the same make and model. You need to be certain that THIS skirt properly fits THIS paddler in THIS kayak. Anything else is just a gamble.
As for specific brands and models, painful experience finally led me to Mountain Surf's Kevlar skirt and its exposed rubber rand. 100% waterproof, not too difficult to put on me or the kayak, and tough as nails. Highly recommended.
Hope this helps!