I wanted to do a comparison between redpower's and Immibis microblocks (immibi's = birch, RP's = netherbrick), here it is:
http://imgur.com/a/szyna
We can see that immibis' have more microblocks, work with most mods, you can add your own blocks/tile entities to the config... but redpower ones, of course, work with redpower stuff, like frames, tubes, red alloy, jacketed...
neither of them work with vanilla/other kind of non full blocks, which is a shame.
So, who is the winner for you? which one is more useful?
http://imgur.com/a/szyna
We can see that immibis' have more microblocks, work with most mods, you can add your own blocks/tile entities to the config... but redpower ones, of course, work with redpower stuff, like frames, tubes, red alloy, jacketed...
neither of them work with vanilla/other kind of non full blocks, which is a shame.
So, who is the winner for you? which one is more useful?