I think they're both made of the same basic 4130 and they are both constructed by TIG welding...It really just comes down to which geometry you prefer
Not even close. The main triangle of the Soma is made of Tange Prestige heat-treated CrMo steel, with a butted chromo rear triangle. The Pake is generic straight guage chromo. Go with the Rush...its a lighter, better frame, made from better materials.