I changed from American to Continental precisely because Continental use 757s. For my final destination I have to connect anyway so it makes no odds to me whether I fly to NY, Chicago, Boston or anywhere else so I can choose the carrier and route. There are a number of advantages to the 757 in my books including the fact that because it is a smaller plane it doesn't take nearly as long to load and unload all the passangers, and also I *hate* being stuck in the middle row on widebodies, so having a plane with no middle row adds greatly to my comfort level. In terms of legroom and space in general I haven't found the 757 (Continentals ones anyway) to be poor.
Incidentally, Coontinental are due to re-equip their Irish routes before summer - I understand that seat back entertainment is on the way. Up to now none of the carriers between here and the US operated seat back entertainment as far as I know, certainly EI, AA & CO didn't.
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