I have never played with Atomic Science, but It might have some unnecessary overlap with something like Big Reactors, and reactorcraft
Dynamic Tanks 2 is nice but for me has always had tessellation render problems, and frankly the added biome is rather gaudy.
Metallurgy: if you are using it for the fantasy/high tier cool-ish, otherwise meh, its a lot of of the same and kinda bloaty.
You have 3 biome mods which will make finding favourites hard and could lead to some poor generation and will indefinitely be hard on a server.
Underground Biomes looks nice at first, and for many will stay nice, but if you lose like in having every single ore looking out of place... it is hard to remove.
Chisel has amazing textures but removes all sense of tier for decoration blocks (the chisel doesn't even take damage), it also kept me from exploring other options(my self control problems though
.)
If you find dungeons early on they basically let you skip the early survival part of the game from Rogue like dungeons.
You have logistics pipes as well as EiO and TE3 so the mechanic module to project red is very redundant but not 100% necessary to remove.
Some people really like hats mod, I found it got childish really fast...
If you are interested in balance, i would suggest using the TE3 recipes for minefactory reloaded.
Morph hasn't been really balanced yet, it does break any need for flight mechanic from ANY other mod.
If you are worried about rotary-craft, it does not add world-gen and can be removed at anypoint without "ruining" worlds.
Mechanism tools overlap with a lot of others (bronze, steel), and the rest are just vanilla materials that shouldn't really have armour recipes >.>
Hope I provided some help even if you disagree, cheers.