Hearthstone

In Magic, I really like decks that keep my opponent's board state under control via burn spells and countermagic while rapidly blasting away their health with more burns and creatures that synergize with spell play like Guttersnipe. I usually play RU or RW.

Which classes best match this strategy in Hearthstone?

Mages have a ton of board control and so do rogues. They both have a lot of direct damage too, especially with rogue's weapon arsenal. Too bad rogues were nerfed though, but they're still fine(They were insane before the nerf.)
You should level all classes to 10 if you get into the beta though, both to unlock all their basic cards and to try them out. Not that you wont get to play all of them sooner or later, most daily quests for extra gold require you to play 2 random classes (Like win 2 games as either priest or warlock)