Yes we all know that, just what kind of ball motion do you want to get out of it?
If you're looking for superior hook and a continuous backend reaction I would suggest going with the Storm Lock. The Crux Pearl and Hyper Cell Skid would be excellent choices if you're looking for something that gets a little further down the lane is more angular. The Eternal cell would give you a more controllable motion compared to most assymetrical balls on the market today. And if you're just looking for a strong controllable back-end then the Marvel-S would be the ball of choice.
If you're looking for something to be at the top of your bag to hook on the heaviest of oil conditions then I would get a Lock. If you would like a stronger compliment to your Critical, an Eternal Cell would be a bit stronger, earlier reading ball. If you'd like something for freshly oiled lane conditions I would personally get a Marvel-S.
I personally think that if you're a higher-rev player, the Lock would be too much ball. If you don't have anything in the bag that's good for freshly oiled lane conditions, I would go and get a Marvel-S, however it will react pretty similarly to the Haywire.
Considering all the points above, and your current Arsenal, if I were you, I would prefer to get an Eternal Cell. Great compliment to your critical and fits in the Arsenal really well.
Hope this helps!