I meant in terms of design. They are all chromoly; the Kilo TT is Reynolds 520, Alien is some mystery 4130 blend that is probably heavy, the lugged Leader frame is some mystery type of Reynolds chromoly, and Somas are Tange Prestige which is from what I understand comparable to higher quality Reynolds steel blends. Design wise they look very similar to the Kilo TT frame on Bikes Island.

Ultimately in a $400 bike you aren't going to get high end materials. But it's a track bike so it'll be relatively light in any case.