I don't know what a lot of the mods to do be honest... so I'll list ones I want to ditch and reasons why I think we should keep ones someone else says to ditch
I'd like to keep:
Inventory tweaks, as it replaces broken tools with any replacements in the inventory which I find *very useful*!
I'd like to remove:
Soul Shards - seems they are only useful for creating spawners for any mobs you've battled and collected souls for. If that's the mod that adds a few pages worth of "essences", that's annoying too.... but I don't think people need (and as a mod I'm not sure I like the idea of) spawn cages for multiple mobs you're not normally able to get.
xycraft - that's the one with those stupid glowing ores (which you can see through the world as chunks load, which I really hate). Seems the only benefit it has is making decorative blocks from those ores.
MFFS - Looking up on that, it seems to add forcefields. I don't think people forcefielding their stuff is in the spirit of what our servers are about. I can definitely see the ability for that to be misused/abused.
ChickenChunks - This is a chunk loader (like the world anchor) which we're not allowing players to use anyway - so is not needed.
VoxelMenu - That's the one that changes the main menu which I don't like, but I guess I can get used to it
Factorization - reading the wiki, it is the one that includes barrels - which I love and I know other people do too. While I don't know about the other things it provides, unless they are a big negative (or we can keep barrels and nothing else from that pack), I think the barrel storage is a very good thing to have, so would like to keep that mod.
Thaumcraft 3 - That adds those brainy zombies, those glowing things, wisps and magic stuff. I'm not a fan of it.
Gregtech - it was apparently included in FTB pack, but if this one is different, I'd be happy to make changes to bring it back in line with what it was in the FTB pack (if we can do that)... it appears it adds in the sapphires and stuff - I don't think we need to be able to make sapphire swords and stuff - it's just adding complexity and extra stuff for no real benefit. However, it does have machines that we have used (matter fabricator etc.)