I use both Jeppesen and Aerad (or Thales or EAG or whatever they are called nowadays). I fly both high level airways in jets and low level in SEP. Without a doubt the Jeppesen wins hands down for the airways charts.
For terminal and approach plates, I preferred EAG but since their new format a couple of months ago, riddled with omissions and errors, Jepps may be a better bet.
IO540 is the man to answer your other questions.