Magic farm (heh I sound like a broken record) it has no IC2 which is great, it has the hunger mod which makes it almost impossible to go running off far to start with and has a massive focus on farming. Talking of farming there's TONS of veg/fruit etc that's modded in and you can make all sorts of food mmmmm pie.
Then there's the mobs, you have named mobs, boss mobs, mixture of vanilla mobs (yep seen a ender"creeper"man).
There's still enough machines to keep me happy (TE/MFR/Forestry/AE) as well as beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees, it just needs
NEI adding cos the recipes for a lot of stuff have changed (like pulverisor needing cobalt).
Basically -
Unleashed = too easy gets boring fast, no challenge
Unhinged = lol too many mods missing, GT made it way too tedious
DW20 = ok I guess but like unleashed lacks a challenge
Magic Farm = hard to start, hard to get started, hard to stay alive, rubs hands in delight!! (
spoilt only by thaumcraft dungeon chests giving out vast amounts of food)