I would like to have, say, the Stirling Generator back because it's the only generator that uses solid fuel and doesn't need a steam setup, so if you just need a little RF power at a remote place where you really don't want to setup something complicated it's the way to go. However, I miss the conduits much more, because of their ability to coexist with other conduit types.
@SolManX
Actually you shouldn't be able to make Railcraft iron plates. IIRC, the rolling machine was disabled and you're supposed to use GT's metal bender which does, basically the same for the same cost. I don't recall exactly but I checked my ability to make an iron tank and all it required was the use of some basic GT machines you will want to have anyway.
