Holy cow, when I first shot the guardian last year I would have never thought to hear anyone talk about it saying it had more vibration than say Bow X. That just goes to show just how good the General really is. The guardian is a really good bow and you only notice that slight bit of hand shock when you shoot it right behind shooting the General.
The best advice is to buy the one that you really like shooting, don't buy a bow for speed alone. As it has been said on this forum before.... you will not be able to notice 15-20 fps and the difference in Pin gap is negligible. As far as custom color i like that Advantage Max-4.