Going back a few posts you'll find this comment on the EMB cabin size:
"Funnily enough, most regional aircraft are fairly small but once you are sat in your seat is there really that much difference on a 50 minute flight?".
Had friends who flew from SFO to MAN a while back. SFO to LHR was on a Virgin B747, LHR to MAN was on a BMI Regional EMB. They said that the legroom was better on the EMB!
'Nuff said!