The most damning evidence against the Big Bang comes in the form of extremely large scale filamentary and sheet-like structures crossing literally billions of light years. Recall that inflation is a deus-ex-machina to save the Big Bang, which should produce a very smooth matter distribution that in fact is not seen. By adding an inflationary epoch one gets enough extra mixing to clump together proto-galaxies and the gross distribution of matter can be more or less accounted for. But the cosmic sheets (discovered in the mid 80s) are so huge that no amount of inflation can account for them, so one or another dark matter handwaving fantasies is usually invoked. Even the Bangers are becoming embarrassed by this ever receding series of Cheshire cats that are required to explain something that is easily understood in terms of plasma physics and eons of time. However, to allow plasma physics a legitimate role alongside gravitation and Lemaitre cosmologies would be all but admitting defeat, and it doesn't happen.
Here's a good page by plasma cosmologist David Pratt:
[link|http://ourworld.compuserve.com/homepages/dp5/cosmo.htm|http://ourworld.com...p5/cosmo.htm]