Here's my rundown of the series based upon the ones that I've thrown:
Original - the best true oiler of the group. As expected, the ball grabbed pretty early, but it still gave adequate downlane motion to promote carry.
Intellect - For me, this one was almost too much on the backend at box finish. I've never had a solid ball backend the way this one did. Now, when I knocked the shine off, it was smoother and more controllable. This was one of the best carrydown balls I've ever used!
Strategy - I've only thrown mine at box finish so far. For me, this one is pretty much between the original and the Intellect. It's definitely cleaner up front than the original, but it's not as violent on the backend as the Intellect was for me.
Einstein - I agree with everyone's take that this is a true benchmark ball. Smooth and even describes this ball perfect. For me, I've found very little use or this piece on house shots, which makes it very similar to how the IQ Tour Solid was for me. When the shot is tough, the Einstein is great. When it's wide open, and I'm looking to score, this usually isn't the ball that I want in my hands. It's a very good piece, but it's a niche ball for me.
Genius - The Genius was a unique ball motion for me. At box finish, it was too squirty for me. I liked it much better with the box shine knocked off a bit, which allowed the ball to pick up and be smoother/more continuous.
Overall, I think that it's been a really, really strong series of balls, one of the best Brunswick has had since the Inferno days. If you know what you want them for, you can pretty much cover any conditions with just a few from this line.