One thing that came up last week at the table was that 4e does not describe the monsters in the entries. Often, if there's no picture, we had no idea what the monsters looked like. We had to look them up online and hope there was an image of a mini or some other sketch. All previous editions of D&D usually included a paragraph or so of basic description text.
On the other hand I enjoy re-skinning the critters, which 4e really encourages.
On the other hand I enjoy re-skinning the critters, which 4e really encourages.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.