There really isn't a difference based on race, any given zone is the pretty much same for a Charr as it is for an Asura etc. Also of note, after level 30 things converge, and all 5 of your characters would be going through one of three options for Vigil, Whispers or Priory. And then after that, those funnel into the Pact.
That said, completing, even if not in their entirety the starter zones for other races is a good/easy way to level, as the XP scales with you, and it's a good way to get skill points while starting.
But for the record, doing multiple characters like that isn't always the best way to get a feel for a character, as a number of them you don't even really get a feel for until after level 40 when you unlock the second tier of traits. I found doing one at a time works better for me, then when you do go back to the newb zones, it will have been long enough ago that repeating it isn't as bad either.