Good list. I've driven all of them around a track, except for the GXP Coupe (although I've driven a normal GXP).

Of the cars on the list, I think the SRT6 is the best deal by a mile.

I think the Boss would win outright around a road course (the Lotus would be the most fun, but I'm biased), and as the article notes the GXP Coupe is definitely the rarest.

I, too, sometimes wish I'd bought an SRT-6, but I just don't like the automatic. I've still considered "trading up" every so often though.