Punchy? Sharp? Aggressive? Might I suggest a glossy maple fretboard? That hard, laquered surface meets those needs quite well. While it's true that maple is "softer" than rosewood, the thick layer of hard laquer on the finish, in conjunction with the (alleged) tonal qualities of maple, make it an ideal fretboard for hard, aggressive, punchy playing.
If a darker wood is your thing, perhaps ebony.
The key thing being the hardness of the fretboard. A rosewood fretboard with a thick layer of hard laquer will do just as well.
As for the body, Alder is fine.
Also keep in mind that the wood of the fretboard, neck, and body contribute only a small portion of the overall sound from a solid body electric instrument, and then only in the form of those tiny incremental steps above the "95% of the way to your sound" mark. Strings, pickups/electronics, amplification, and playing style contribute far more.