I've owned one Velocity, raced two of them, and driven a number of them. This is one of those questions I would rather answer off site.
But trust me, the difference is huge.

Ya no 28 either.

So I guess after 7 pages of post we have come to the conclusion that the 29 Fever is the best 27-28 foot boat for the buck. Ironically, I have one for sale

I'm partial to this 28 Cigarette.

http://www.offshoreonly.com/esvon/page-11648.html

That Cig is awesome.