I've tried lots of different things for pea support over the years. The chicken-wire with tomato stakes works pretty well for most types of peas. If you are growing one of the taller varieties, like sugar snap peas, though, the chicken wire is not tall enough. Since I only grow sugar snap peas, my husband built me some pea fence out of 1" by 1" strips of cedar, fashioned into five foot square trellis-like sections. They are kept in place by lashing them to 1/2" rebar rods pounded into the ground, which we have found work well for lots of garden needs. (such as securing tomato cages). The sections of pea fence are put into place first and then I plant a row of peas on both sides of the fence. As the peas grow, they grab onto the fence and the pea plants on the other side of the fence. For the ones that can't seem find the support, I run a string, tied to the fence, about a foot off the ground and prop the plants into place. They soon start clinging to the fence.
Terri in Indiana