"Clark W. Griswold, Jr." 73115 dot 1041 at compuserve dot com wrote:

IIRC, Economy Plus and Virgin's equivalent are the same economy seats with a bit
more leg room. Doesn't help with seat width. Exit row seats can be even worse as
they tend to have trays in the armrests which makes the seat a bit narrower.

And as a followup to my own post, The Virgin economy+ seats are slightly wider
than their standard seats. BA's are not at 18.5"...