Leveling: Your main form of exp is mostly from dungeons/ low level duty roulette (basically random dungeons with bonus exp, which can be complete once a day).

Community: Honestly, I don't encounter much about the whole PS3 vs PC thing. Though regardless of what system you have, you will be kicked if you don't perform well in certain parties.

Content: New coil, and new CT coming out in a month. First coil and CT is free for all to access with no lockout. 2nd coil and CT2 will remain weekly lockout until it gets outdated.

If you're looking for PS4 LS/FC, you might wanna ask on your server's forum specifically.