to be honest, plain old penny sleeves are the way to go. Sure they don't come in pretty colors, but they are cheap, thin, and most importantly you can see through both sides for those silly double sided cards like admirals without having to pull them out of the sleeves.
What I use as well. Its really all that feels necessary. They don't have to stand up to a beating. Mostly Attack Wing cards either sit on the table (or in your storage container of choice). They don't go through rigorous shuffling. Penny sleeves aren't going to get worn out.