These may not THE very best, but in my years of experience in jailbreaking these are my favorite:

-Aero...I just recently found out about this tweak it is a really cool atlernative to multitasking check it out it's pretty awesome.

-Barrel: Well know but still cool......different page transitions on your homescreen

-biteSMS: ONLY DOWNLOAD THIS IF YOU HAVE AN iPHONE!.... very helpful quick reply app for messages.

-Installous 5: free apps for everyone! the fastest download is from limelinx fyi.

-MulticonMover: Lets you move multiple icons at one time.

-Pandora Downloader: If you have the internet radio app pandora this app will let you download songs you listen to and will block all ads and you will have unlimited skips.

-PaperLock: Amazing lockscreen tweak! instead of sliding to unlock you turn the page to unlock it's really cool, you wont be disappointed.

-SwipeSelection: the way iOS should have made text editing, just swipe across the keyboard to move the cursor to edit text, this is really helpful and fast.

-Zeppelin: really cool carrier name changer that puts icons or picture in place of your carrier name...works for all devices.

thanks for reading hope you enjoy all the tweaks and apps listed above.