Hi and welcome!
First off, we can always use more detailed info on what styles you play and what you want out of your sound, as hard rock / metal is a rather bright field that can be played with Iīd say about 16 of the BKP Humbuckers in various ways....so you see why details can really help here^^
But on what I know and my hunch lets say this:
Ok, lets tackle the Ibby first. Warpigs are rather extreme. I am not saying that they canīt work for you, but you must realise that they really have a big low end. Really big. Now there are enough examples of them sounding killer out there, no doubt (dat growl oO), but I always advice to be careful with them. Is your Ibby really bright acousticly? If so, maybe the WP can really add the body you need and tame the hights, but maybe something like Miracle Man might be a saver choice here.
That one also has a big bottom, though not as big as the WP, has a lot of low mids giving lotta chunk, the regular mids are there, but not very prominently and the highs lend a nice cut, ability to scream when you want without every loosing a certain general smoothness in a musical way.
Really listen to the guitar acoustily and then continue. Both should add body and provide great sounds.
On the Paula side of things there are a lot of options. The Nailbomb certainly should take out some flub as it is rather tight. Might wanne take a different neck though if you go that path. The NB neck is great in its way, but you should be aware that it probably is the only scooped BKP, so just bear that in mind. The Cold Sweat neck is a great alternative.
For the general style you quote there are plenty of options really, Coldsweat set for classic Gibson sounds, Emerald set for tight versatile riffing and singing leads, Rebell Yell set for a more hard rock take on the Nailbomb, etc....
