Difficult choice between OOTB and ANWR. I think ANWR is more solid and with almost no bad songs (except Mission), however OOTB, being a double album, runs with numeric advantage and has more good songs.
The best therapy for any problem you might have is playing music with friends.
Wh- What? How am I supposed to choose either OOTB or Eldorado? Well... I would go with OOTB since it was the first ELO album I heard, but Eldorado is a perfect prog rock album, and it's one of the best albums I ever heard.
Not an easy decision, but has to be ANWR for me. Not just because it's the album that introduced me to ELO, and thus defines ELO for me, but I think it actually defines ELO. It was the album that brought ELO to maturity and there isn't a song on it that I feel like skipping.