I recently emailed Jet blue about service to Bradley and was told that if they recieved enough requests for service to Bradley they would begin service there. your best bet to get them into bradley is to email them on there website
www.jetblue.com
as for southwest I'm not exactly fond of there planes the have small cramped seats, and no leg room. however the last time I was flew southwest I got to fly on one of there redone planes with leather seats very comfty but no more room in them. the blue planes are the ones with the leather seats.
if you look at the first link you will see a newer southwest plane this one has tipped wings its as new as you can hope for.
http://www.airliners.net/open.file?i...%3D&static=yes
not all the leather seated planes have tipped wings but they all have the same paint job unless they have a custom paint job as in the link below.
http://www.airliners.net/open.file?i...%3D&static=yes