I was playing the DC Universe beta for a month or so. The game is very beautiful for an MMO and puts CoH and Champions to shame for graphics and movement powers. It's a lot of fun at first as you work through quests with the aid of big name DC heroes. Where it suffers is the ability to customize the initial look of your hero. With just 3 options for the size and shape of your character, most people kinda look like each other. Champions on the other hand gives you options to change pretty much every aspect of your appearance (would you like a really big nose or maybe a tiny head? Champions has your back).
The beta was fun but I wouldn't have bought/subscribed to the game unless I was going with a group of friends.
"It's like a koala bear crapped a rainbow in my brain." -Captain Murphy