I am an FNP and love my job. Sometimes I feel like a resident because of the workload, plus, I'm still learning. However, I really love being an NP.
Personally, I think being a PA is not as great as being an NP. Think about it...An MD is the highest you can go in medicine and an NP is the highest you can go in nursing (aside from a Ph.D.). A PA kind of floats in the middle with no real theoretical basis to their practice. An NP can do both medicine and nursing, but a PA can only do medicine. That's just my opinion.
Also, PAs don't make a lot more money. The money you make depends on where you work and what you can do. I work in a family practice and make pretty good money for a young NP with less than a year of experience. A PA's pay may be higher if he or she worked in a surgical setting.
I think of a PA as a Doctor's helper and an NP as someone who practices independently with their own set of theories. Remember, an NP gets his or her own license and a PA practices under an MD's license.
I just think NPs get more respect...but, again, that's just my opinion.