Straight pull spokes are really nice, in my opinion, for higher end factory built wheels because they eliminate the need to correct the spoke line against the hub flange and are less in need of stress relieving.

I don't think there's much, if any, advantage to straight pull in a well built handbuilt wheel and straight pull has more restrictions on build parameters and the spokes are less common as replacement parts, though neither is a big deal. The hubs are usually a touch more expensive as well.