I have flown DL to EZE in BE. The seats are only 18.5 inches wide in the 767because they have 6 across instead of 5 in CO. And the food was not near as good in BE as in BF. But it is much easier to get award seats in DL's BE than in Co"s BF. For the last three years I have been able to get Business class awards on other carriers and not on CO. DL is not bad but I would prefer CO