Most people'll end up comparing old Pikes with brand new Revs so it's a wee bit unfair. I don't think my Teams are as stiff as my old 2009 Revs which in turn weren't as stiff as Pikes but it's nothing to worry about, the differences are slight (and I still happily ride 08 QR Revs which are way less stiff but still stiff enough)
If you care about the weight difference, or yout Pikes are tired, it's going to be worth it. But, you might notice a difference in stiffness, and if you do that might bother you, but then it might not.
Oh, BB vs Moco, BB is a fair bit better, Moco's perfectly adequate of course but when it gets rougher and fast it basically feels like all it's doing is absorbing the bigger impacts while the BB keeps on really tracking and reacting to everything.