Yeah, Revenant is extremely powerful if you can handle the Legend Swap. I have the same problem, I struggle with the revenant mechanic.
One of the simplest builds to play is Pistol/Pistol Deadeye, Mark your target with F1 and hold down attack 3 until it dies.
http://en.gw2skills.net/editor/?PaBBoqprlZwwYXMI2IW+XXvUA-zRIYR0wXGRkAVUA2eQCju%2FziVzAA-e
You only need to weapon swap if you get bored or run into something that reflects ranged attacks.
All the recommendations so far have been elite specs.
For the easiest levelling experience there's the Necromancer minion master. Your weapon skills are quite weak and you use them mostly to gain life force which you use to activate your F1 power. Your minions do most of the fighting and tank for you. You spam autoattack in your shroud form when you need to join in.
In the end you need to find the class that fits you and your playstyle.