I don't think its the lure of LH that has got many wanting to escape SH but the changes to SH making life really hard. I was away from home for 90 duty hours a week in March. Many are saying the only way to survive SH is to go part time.
You know it's bad when guys in the LHS A320 are considering a bid back to RHS on a LH fleet. The roster I saw for a junior P1 is horrible. 10 days off in a month and a line full of poor credit trips and 4 sector days. A junior P2 is not much better. Then you look at a 777 line with heavy crew and three trips in a month with 15 days off a month.............grass is always greener and all that but since SH got stuffed it's only a matter of time before LH gets it too.
I have no issues staying on the SH fleet but I don't feel I pilot should be made to feel he has little or no choice but to bid off based on the wide gulf in lifestyle between the two.