You need any more help in choosing, or have you decided on the Warpig?
You could always get the best of both worlds and have a Ceramic Warpig! The standard Warpig has an Alnico V magnet, and the Miracle Man has a Ceramic magnet. Ceramic is for a tighter low end, more harmonics, Alnico V in the Warpig is for more grinding mids kinda thing (i think thats right!)
If it were me, i would go for a Ceramic Magnet pickup as the X2N is ceramic, i think i would go for the Miracle Man, but Ceramic Warpig will sound just as good just more bass because of the double row of screws on the pickup.