Done the survey. I'll post some of my answers here for the forum.
1) I usually don't mind lag spikes, but constant lag is a big no-no.
2) I only play on 24/7 servers. If I can't log in once, that's fine, I know Tekkit isn't perfect, but after two or three times of not being able to play on a server where I have all my stuff in, I switch servers.
3) Abusive staff is a deal breaker. If admins are allowed to play, then it should be made abundantly clear what kind of powers they have. If can spawn items and teleport at will then they should not be able to interact with other players at all. Things like an admin giving a diamond to a noob out of the kindness of his heart should not be seen on these servers, ever. Also, there has to be a clear set of rules, moderators to enforce those rules, and admins to keep the moderators in line. Preferably, any admin intervention/spionage should be silent (vanish plugin).
EE has no place in a survival server. You should disable or cripple UU matter as well. Either that or extend your recycler blacklist to prevent mass scrap production using cobble factories.