That's a pretty subjective conclusion. There are many metrics that determine what is "better" as far as career go. At BA, you have varied fleets, a mix of flying, overall better conditions and you are working for the recognised flag carrier. Having said that, Easy is also a good destination for a career (have a few friends there, quite happy and satisfied). Regardless, either option would be far preferable to the dystopian nightmare that is the current day CX.