I have to ask out of curiosity: In regards to what do the other mods make more sense?
The whole wrench stuff IC2 has going on. Sure we have the OmniWrench (which I love), but that doesn't take away IC2's own wrench mechanics are just stupid. Stuff breaking when using the right tool, that's just lame especially because it's only a problem early game, the time when breaking something hurts the most. It also doesn't make sense a hand tool would be more crude than a power tool.
Watermills can't accept water from pipes while Geothermals can accept Lava through pipes. Any BC machines/engines that need water can accept it through pipes. Pumping water directly into a mill would be OP? That's just a matter of adjusting how much water it will accept and how much power that will generate, just like solar and wind energy are balanced through how much EU/t they produce.
The recipes in IC2 are also a bit problematic. With TE you have the "machine frame" which is the core component of (almost) everything. MFR has a machine base (I'm not sure what it's called atm) which every recipe uses. And in general both have similar recipe structures, basically if you learn the way they are structured (for example TE: machine frame in the center, reception coil/pneumatic servo on the bottom, 2-3 different items around that with 2 open squares on the top-left and top-right) you can potentially guess the recipe for every machine in those mods. It also means you only have to do 3-4 crafts from raw materials to finished machine (machine frame, reception coil, piston, Pulverizer = 4 crafts).
In IC2 you will never be able to do that as its machine block and chips are all over the place, not to mention both of those require several additional steps from plain iron, copper, etc.
And then there is the whole deal with IC2 cables, get Glass Fiber and you'll never need anything else. Ignoring Glass Fiber though, it doesn't make sense mid tier gold cables are the most expensive of the "copper, gold, refined iron" line of "regular" cables.
And I'm pretty sure there are many more inconsistencies in IC2 which other mods simply don't have.