It kinda depends on the flavor of rock/metal you're doing, and the tuning you'll be in. In general, for basswood, I'd think you'd find success with the Cold Sweat (as above), Miracle Man, Juggernaut, Black Hawk, Aftermath, or even Warpig, just depending on the particular sound you're going for. For screaming AND versatility, I'd say Cold Sweat, Miracle Man, or Black Hawk, but again, three very different tones right there.
Can you give more info on the sound you want?