I guess you can say that I've never been a big fan of wedges, but they are beginning to grow on me and occasionally there is a pair that catches my eye. Wedge sandals look chic with shorts and minis, and they obviously provide better stability than a stiletto. A wedge heel is a great option for summer picnics, since they're usually in the grass, so you won't have to worry about sinking in the dirt and they offer another shoe option beyond flip flops.
Wedge heels are offered in varying heights, I am personally partial to 2" to 3" heights. You can also find a lot of "stacked" wedges available now, which are marketed like platform wedges, and are equivalent to super high stilettos. Try wedges with maxi dresses and linen pants for a super summery look.