Plugs are more expensive, but they establish a lawn quicker. Plugs are a better choice if your existing grass will hinder seeds from making contact with the soil. Warm-season grasses are creepers. They grow out more than up, creating an underground mat of interlocked roots. Bermuda grows fast and might be hard to control if you have flower beds or a garden nearby.
Centipede tolerates poor soils and has coarser blades.
Zoysia grows slow but tolerates shade better.