Hi Thomas,
I used to work for BMI (and MON too!)... Night stops can vary, the situation may have changed but I worked for them 3yrs ago.
When you start working there, you can fill in a form and fax it to Rosters. On this form you can request little or no nightstops, or Max nightstops. I requested max nightstops.... I found myself away for most parts of the week.
I generally used to nightstop at MAN, DUB, EDI and AMS. I don't know if they still do, but they used to have a whistlestop tour of Europe, stopping at Rome, Brussels and Madrid which meant you were away 3 - 4 nights of the week.
They do pay for Languages like MON do.... but I can't remember the pay scale.
Personally I had a nicer time at MON, nicer trips as I was on the a330. If you are PERM crew at MON I would personally stay there, as I found BMI very tiring with up to 5 sector days.... Got on my nerves saying hello and goodbye that many times a day.
Anyway thats my view, BMI does have it's good points, but better the devil you know etc etc
Hottowel xxx