The Rush frame is nicer (better steel) than the Kilo TT frame, but at 300% of the cost of the Kilo. However, the Kilo is made of Reynolds 520 which is pretty nice actually. So it really depends on if you are willing to shell out the extra Benjamins for a slightly lighter frame. The welds on each look about the same quality and the geometry is similar.

Contrary to what the above poster said, I will say that the Fuji Track and the Kilo TT are not the same frame by any means. The Fuji Track has almost no toe overlap, and the Kilo TT has about the same amount of toe overlap you would find on a Pista. The Fuji Track, as has been stated in many other threads, is the same bike as the SE Draft. It is a bit more relaxed in terms of geometry and a little heavier.

Not sure if you are in the market for *just* the frameset or not, but I will say that BD offers the full build way cheaper than you'd pay yourself trying to build it up.