Personally I like and shoot a Vital Bow Gear Trapper. They come in 1, 3 and 5 pin sights. Each pin has 3 feet of fiber optics so it's a very bright site. the construction is almost completely alluminum.

They are a bit pricy about $90.00 but so are most of the other good sights on the market. IMO they are definately worth a look at the least.