Does a 20g suck these days?

[sleepydsm]

I've been hearing some information lately that 20Gs are pretty much worthless as an Evo3 16G flows only 2cfm less (I say BS) and one of those FP 18Gs would be "way better" and that a generic PTE 50 flows just a bit more than a 20G. Anyone have any real facts for me?

I have a friend with a very quick e85 20G car (Kerry 95talonracer), my old car had a BR 20G which was a lot of fun and it was not laggy at all, I only know good things about them.