Corporate vs Airlines is really an apples to oranges comparision. My pay and bennies are better in my opinion, but I don't have a hard schedule. Also my job requires alot more face time with the pax and alot of non flight related tasks.
When going for a corporate job, time is only used as a qualifier. After that it's who you know. And I hate to say it, but average time for most corporate drivers is 5000. Although entry is 2500.
Right now the industry as a whole is facing a downturn. In my opinion it could be a long one. If you have seniority, I would stick with your current employer until things turn around.

Pay is basically what you can negotiate. But various agencies do publish pay charts. Avcrew.com and Pro Pilot are the two that I use. Also NBAA publishes one.