My top things:
1.SBSettings
2.Installious
3.Dreeamboard (advanced winterboard)
4.Spire (for use of Siri)
5.TinyUmbrella (just like SSH Blobs)
6.InfiniFolder
7.iAp Crakcer (in-app purchases, FREE)
8.ColorKeyboard
9.iFile (only for advanced users, amateurs wont like it, its for hacking into apps mostly)
10.CyDelete
11. Activator
12.BBSettings
No Comment.