I got to try all the classes over the few BW that I played and the only one I really enjoyed was the CW. It was the one I kept leveling up and got one to about lvl 42 this weekend. I found the other classes to not be as interesting for me, though they where still fun. I think at heart I'm just a CCer who loves to mess with…
I bought the Guardian pack a month or so after I bought the HoTN and in the two days of a BW, I got to about lvl 24 and I was trying to pace myself in those two days and not rush content. I think 5 days is enough of a headstart. :)