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http://www.youtube.com/watch?v=8A_qtT1Z270&feature=related Level 3-4, Charr ranger WORLD PVP ACTION.
A tauren hunter that level would still be killing plainstriders in mulgore...but guild wars 2 won't allow that. Note: The team being shown in the video outnumbers everyone else due to population imbalance in that beta.
Some larger scale battles and walkthroughs from yogscast- http://www.youtube.com/watch?v=VyMRoB8Xff8 http://www.youtube.com/watch?v=GxeffOuV_5o&feature=relmfu