Originally Posted by OranjeJus
I am almost opposite to Daed. I do recommend using buildcraft pipes. They are simple to learn the rules to, easy to build short range basic sorting with and require a lot less material to make. Tubes and sorting machines would work well when (or if) you scale upwards.
In my opinion it's not what we personally think is best but what is best for the server that has to rule. I also think it's much easier to use buildcraft diamond pipes to begin with, but they are also risky and it's actually harder to build higher level functionality with buildcraft pipes than it is with redpower. And in the end they are much tougher on the server and shouldn't be used (or should be heavily restricted) on the server.
And when I say it's easier to build higher level functionality with redpower consider this setup:
A chest of ore feeds into a macerator that feeds into a furnace that feeds into another chest.
With redpower you simply connect it all and as long as there is room in the final chest items will flow. Once that chest is full, items will no longer be taken from the furnace, which will become full. When that happens items will no longer be taken from the macerator, which also will become full. At this time items will no longer be taken from the initial chest. The system has stopped in a safe way due to being back-fed.
Using buildcraft pipes for this you would have to have an engine at the first chest pumping items into the macerator, but at the same time checking with gates that the macerator isn't full. And in every step you would have to do this, with a gate setup that is not trivial (remember that once items can't be accepted anymore the gate will fire, but at that time it's too late because there are already items en route in the pipe). Due to buildcraft being front-fed this kind of thing quickly gets complicated if you want it overflow safe.