Best modpack?

the best mod pack for minecraft in my personal opinion is crazycraft

Yo,
it depends what you like
personally I like everything that is technical so feed the beast or the modpack factory I appreciate.
After, as I said, it all depends on your taste.

I never liked pre built modpaks, i like taking a week and making my own and tweaking things on my own accord, thats just my oppinion xD.

Get the feed The beast launcher. Then it's easy to look for them there.

I spent a lot of time on the Hexxit modpack available on the Technic Launcher.
I highly recommend it to you man