Pseudonym
Ivan Alias
So please, read the thread title and respond to the actual topic.
So tempted to ladle a huge gob of snark....
So far I've played an human evoker mage and a shade thief for a session of Encounters each. They were enjoyable, but I can't really comment on them since my play experience was so limited.
I've also played two knights: a dwarf and an eladrin. The dwarf was the standard build from the book for two Encounters campaigns and he was a blast to play. Hammer hands is loads of fun.
The eladrin knight I play currently in a home game, using the dragon supplemental material. He's multiclassed with swordmage so not pure essentials, but is by far my favorite character in 4E to date. The teleporting and free melee basics are too much fun, especially in glimmering blade stance. We've just hit 4th level but this character looks to have a lot of fun potential yet untapped.
I run a game using essentials only races and classes currently going though the Harkenwold adventure in the DM's box. The players seem to be enjoying their characters so far.