From a bunch of my buddies at Trans States, I heard the most recent bid had 11-12 days off for nearly everyone despite seniority.
When I was there, and had gotten "senior" as an FO, then upgraded to Captain it was rare that I got more than 15 days off/month...15 days off a month is awesome...the odd thing though was thinking that I spent half a year on the road...And that was the BEST of times...averaged closer to 12 days off a month.