Long time no see!

Hey guys, i am making a sandbox server on Gmod (Garry's Mod) it is almost done all i need is the hour ranks and the server is done. I need suggestions on what the 2nd rank should be and commands each rank will get. These are the current ranks:

Regular - 4 hours
need a rank name for this one - 12 hours
Dedicated - 24 hours
No Life - 48 hours

do you guys think i should make admin,super admin and head-admin hour ranks? if so how much hours?