With both being nerfed recently, I figured it would be good to compare them.
Rogue: 235 AA, 36/20 primary (Augged epic), 29/19 OH (Augged Bloodbath).
Low DPS on trash mobs: Around 350
Average DPS: 550-600
High DPS: 800
Ranger: 112 AA (all archery AA), Unauged Darkwind (41/28 bow), 10 dmg + 4 ele dmg arrows.
Low DPS on trash: 100
Average DPS: 170
High DPS: 290
As you can see, it's a BIG gap. Also, to throw this in, a monk with emp aug + ToV 2hb was parsing about 1k DPS on raid mobs the other night average, nearly doubling the next DPS's damage. Raid mobs have more AC than trash I am assuming also. Bersekers I group with who have 1.5 and most DPS aa's also only parse about 3-500 DPS.