Abraxas
Explorer
Just anecdotal, but, having played every other week since 4E was released (except for 2 months last fall) and through all 3 tiers - many of the classes just don't play out that different at the table IMO. Now you could blame this on our DM or our playing style, or it just might be that whatever that intangible difference I felt when playing other editions is not being supplied by the current rule set. Or it could mean the things that have been changed/eliminated are what helped give the classes and even different characters of the same class a unique flavor/feel to me and the people I game with.And you'll pardon us if we are totally unable to even vaguely comprehend how a 4e shaman is even vaguely similar to a 4e barbarian. I hear this assertion all the time from people that haven't played 4e. TBH I pretty much have to wonder if anyone who makes this assertion can possibly have played anything beyond the most trivial amount of 4e. I wouldn't say 4e classes are more varied than classes in previous editions, but they are certainly EQUALLY varied.
I also have to comment on the the idea that the Essentials classes are going to be more difficult, or even no harder, to teach to new players. I have just started a new campaign with a group of new players (the group is both young and have never played RPGs before). It has been an absolute bear teaching them the game so far (I have gone so far as to have another player there just to help them out - he doesn't even run a character) - the Knight preview certainly looks like it would be easier to teach them. In order to ease them into the current game I intend to give them a limited list of feats/powers (no more than 3 - 4 powers and feats) at each level to select from.