For the bridge, I think that both the Abraxas and Crawler are good choices. The Crawler will give your guitar more bottom end and have a thicker tone with a bit more 'growl'. The Crawler's natural home is Blues Rock but it will go from Blues to early Metal quite happily. I REALLY loved the Crawler when I had one in the bridge of my PRS as it was extremely versatile and retained a bit of 'attitude' all the time. I've found better pickups at individual styles but none that have been so good at so much. That guitar ended up being used more than any other and it was my 'second' guitar before the Crawler was installed.
The neck pickup seems to be far more of an issue for you so I've reviewed the whole thread and come to the conclusion that AnnunakiMassacr is onto something. Words like 'cut', 'bite', 'girth' and 'attitude', amongst others, all fit a P90. It will certainly give you something different to your Cold Sweat and it will be, arguably, less 'Metal' while not being singlecoil either. When it comes to which P90 however, I'm not convinced the Supermassive is your best option for a few reasons:
1) P90 pickups invariably seem to be a LOT hotter than their DC resistances would suggest so in the case of the Supermassive, I think you need to consider the possibility it might overpower your bridge pickup. I've heard of Mississippi Queens being more than capable of living with much hotter pickups than a Crawler.
2) If you go for either the Crawler or Abraxas you'll have a pickup that is great for Rock but with a strong hint of Blues character so it would make sense to choose a neck pickup that has a similar feel.
3) You say you want something that is 'bright-ish' and a lighter wind would give you a brighter pickup whereas the Supermassive is darker.
4) In the neck especially, it never does any harm to have something that is versatile.
With all of that in mind, I would suggest that the Mississippi Queen would be a better alternative. Even though the DC resistance is only 6.9K for the neck model, you'll find it's astonishingly hot and the AIV magnet will give it a beautifully sweet tone that retains loads of cut, bite and attitude thanks to it being a P90. If you really feel you want something hotter and with more bite, use a Mississippi Queen bridge model in the neck position. That's what a friend of mine did in his Telecaster and it's one of the most remarkable neck pickups I've ever tried, and I don't even like Telecasters!!! It had everything you've described in spades and a lot more. As always I would suggest listening to anything Kiichi has to say on P90 pickups as I consider him to be my resident P90 guru so he may say I'm talking rubbish but I honestly think that the Mississippi Queen, either neck or bridge model, will make a better neck pickup for you.