You realise that the reason EE2 is dead has nothing to do with whether or not it was OP. It's dead because the creator moved on to EE3, the updated version of it, like how Windows 98 isn't dead because of it lacking something, it's dead because Microsoft simply moved on to newer versions of the OS.
Actually, the creator of EE2, Xenophobe, is the one responsible for Xeno's Reliquary. Pahimar merely maintains EE2, but is the man responsible for EE3.
Honestly, I like DartCraft. Its all in (what I understand to be) its motto: convenience is king. DartCraft is incredibly convenient. On the server I'm playing on now, I have full quantum armour (no MPS or GraviSuite), and still use DartCraft tools. Why? They're easy to make, and the enchantment system is fucking
leagues better than the comparatively abysmal, RNG-governed pile that is vanilla enchanting. Hell, the only thing I really use the power drill for, and I've got one with max speed and fortune, is clearing terrain really, REALLY quickly; which is, again, damn handy in a server that does not possess Tinker's Construct. Force Packs? Honestly, I like them a hell of a lot more than I do Forestry ones: they're not as restrictively specific in what they can carry, are easy to expand, and make it so I can mine more up for longer periods of time. They're like the big brothers to RP2's canvas bags, and the cousin of EE2's alchemical bags. I, honestly, don't want a pack that can only take X kind of blocks, I want a pack that can store whatever the hell I want to put into it, and DartCraft provides that perfectly.
Hell, once I get back in the server (I've been off for a day or two, girlfriend got off a hell week at work, so we're living the weekend up like a pair of bosses), I want to see how much it'd cost to make a fully automated Force Engine farm using crushed ice, from GregTech because bees are too damn much work, as coolant. Either that, or find the biggest, most massivest oil well I can, pump that shit up into a quantum tank, and use the crushed ice as coolant for combustion engines; I haven't quite decided, yet, lol.