Ok I have no idea if the original poster did end up with either bike, and I am curious as to what he got.
I will not say buy this or that bike. Its is up to you to determine which bike is right for you. Try them out, if you are not able to try them out, do the #'s research Head angle, BB height, Top tube length and chain stay length are the most important. This is what I did when looking into a new frame, I spent a lot of time studying angles and lengths of pretty much every FR/DH bike out there that was not a single pivot, for well over a year.
I chose the Cove STD over pretty much every bike out there, had exactly what I was looking for in the angle/length dept. I was looking for a frame to replace my 2006 Norco Team DH, I wanted something with 7-7.5" travel, around 65 head angle, longer chainstays, and around a 14.5-14.75 BB Height. I also knew what parts I was putting on the bike which included a 8" travel Dual Crown, so I did my research and did some e-mailing and phone calling. I talked to Gabe @ cove about running a 8" dual crown on a STD, he said it would be fine.
Now I know a lot of you are going to say the V-Tach fits that mold nicely and it does. The major thing that threw me off is the price, and lack of availability.
I have had only a couple of weeks on my STD and I cannot say enough good things about this bike….. IT IS A FAST BIKE!! It rails corners and shoots you out like a slingshot, pedals like a dream, jumps like its has wings. I could not be any happier with my decision on the Cove STD.