FL,
Don't worry about egos. They soon wear off when people realise how hard they have to work. Remember, the BA guys aren't BA guys until they've passed the course and have been offered a job. Down to earth with a jolt has happened to a few!
In the meantime, take the BA option (once you're in, it's the only secure job in the industry)! Seniority is everything in that company so the sooner you get on the list, the better.
Good luck and see you on the line!