Keith was a big Kath fan; he's got his own style, great talent, but throws in the definite homages to Kath.
For instance, of all the guitarists Chi has had since Kath, only Howland always starts off the 25 or 6 to 4 solo with Kath's exact riff, and then breaks into his own stuff. Like Kath, has fun with his wah-wah, when not too many rock/pop guitarists are using it. Also has a couple of solo albums.