Here are Delta's regs. I still can't tell if United's will be better, but I want you to make an honest comparison.
We get a 5:15 average per flying duty period. That is a huge loss for us. A 3-day trip with only two duty periods (usually includes a red-eye back) could pay 10:30 before the rig below was introduced in our new contract. This applies to lineholders per trip. It applies to reserves per month (it's a useless rig to reserves). A duty period with deadhead only does not count in the average. A 4-day with 4 duty periods of flying is worth a min 21:00 to a lineholder. Again, reserves get screwed.
We do get a 4:30 calender day average now as long as your sign in is not after 2200 and your finish is not before 0200. There is a 2 hour buffer on each end. Now those 3 days with 2 duty periods pay 13:30 (still crappy, but not quite as crappy). This does apply to reserves and it does help reserves. The west coast pilots starting with a red-eye still get hosed.
We get 3.5 to 1 trip rig. It applies to everyone no matter what and it does help.
We also get 2 to 1 duty rig. It only helps during irregular ops or if you get in late and contractually stay on duty all night for pay purposes. When that happens the rig drops to 1.75 to 1 and pay sky rockets. It is very rare though.
I consider myself pretty knowledgeable to my contract so if anyone has any questions, just pm me.