Hello. This question has been turning my brain into mush for 3 days now, and I desperately need Guru's help.
*Note: Assume, for this question, that I enjoy and like both classes exactly the same
I have spent weeks getting both my engineer and thief up to 80.
I would appreciate feedback from anyone (preferably, however, someone who has played both to 80) for the following:
Disclaimer: I have a lvl 80 engineer. I have just started leveling a thief. What I'm going to do here is give you an idea of what the engi can do. Where I can offer a comparison based on thieves I've played with, I will.
Which class is most efficient at single target? (and, consequentially for this question, what weapon and/or kit and/or build is the best single target for engineers?)
If you want to shut down a target, you want a thief. If you want to do silly amounts of burst damage, you can use either. For engineers, you want a Rifle/grenades build 30/20/0/0/20 and full Berserker gear (6 x Superior Rune of the Wurm), Superior Sigil of Air on the rifle. Key traits: 30 (Whatever suits you, Explosive Powder, Grenadier), 20 (Rifled Barrels, Rifle Mod), 0, 0, 20 (Speedy Kits, Static Discharge
). Utilities: Rifle Turret (for the Toolbelt skill, don't use the turret itself), Grenade kit, Tool kit (for the Toolbelt skill). Use Surprise Shot, Grenade Barrage, and Throw Wrench on CD, and make sure you are holding your rifle (not a kit) when you do. Watch the lightning bolts cut down your enemies and laugh.
Which class is most efficient at AoE?
Grenades, if you know how to aim.
Which class is most efficient for solo farming?
Thief probably plows through single targets faster, but the engineer is no slouch either. Engis are better for lack of down time, I think.
Which class is most efficient for group farming?
Depends what you mean by "group farming." If you mean, "I will take my 5-man group and we will go farm dungeons," you probably want the Rifle/DD bulid I listed above if you play engi. Also, our AoE revive is very useful in dungeons. If you mean, "I'm going to go farm Karma/loot on the Orr DE circuit," then you can't beat an engineer with a flamethrower for tagging ability. Spec all the way up to Juggernaut in the Firearms tree for super effectiveness.
Which class is most efficient for those huge events with tons of people (think tunnel) where tagging quickly is the name of the game?
Which class is most efficient for dungeon runs that generally contain a guardian, necro, ranger, and warrior?
Depends how your group is specced. Generally speaking, the engineer is more versatile than the thief, but both would probably be fine.