I agree with Bill! (I am bias)
CCX then ERA then SPF
Why:
1) For me the CCX tubular frame and S/C body shape edge out the others. In the day they were ERA's arch rival.
2) ERA has time and engineering advantage as CCX cars are usually older. ERA outboard rear is A-1

3) ERA is a great car, especially the FIA, that frame was the stumbling block for me.
4) From a production stand point SPF outnumbers the others. Ie: More at shows/events.
5) I have driven all three as well as an original and CCX and ERA replicate the original feel more closely.
6) SPF uses new Ford parts and power brakes, yes they are more efective but I was after the feel of the original as I was $1mm short when shopping.
7) SPF come complete so those with time issues......SPF
Let the debate continue........
