As you know, followers are useless pretty much as you level up in the game. There is a FIX for this however, and it is very simple.
Some background first. you may or may not know, but followers do not level up properly. They gain level increases, but they DO NOT gain HP and their Skills don't increase. This is why they get weak(such as Lydia) as the game goes on...yet some will level up enough where a Dead Thrall Spell won't work on him/her.
To fix this, you will need the Wabbajack from the Sheogorath Mind of Maddness quest. Once you have Wabbajack, perform these steps.
1. Take your follower outside of town away from the guards to avoid a bounty.
2. Save your game.
3. Dismiss your follower.
4. Immedialy use Wabbajack on your dismissed follower, and continue to do so until you follower transforms into a mud crab, a chicken, or a rabbit. (YOUR FOLLOWER MUST TRANSFORM INTO EITHER A MUD CRAB, A CHICKEN, OR A RABBIT FOR THIS TO WORK)
5. wait for the effect to wear off. You will know this worked because when your follower transforms back into their normal self they will be wearing their default gear.
6. Talks to them, and recruit them again. your new leveled up follower will now be following you.
To test that this works, Cast the 25 point damage lightening spell on your follower BEFORE and AFTER Wabbajacking them...you will notice their HP bar decreases less afterwards.....It best to try this on Lydia if you got her at a low level and your now on level 20, 30, 40, etc...you will see Lydia will get her stat increases as she was intended to after you Wabbajack her. This stays and persists on saves and loads as well.
to level up your follower, just Wabbajack him/her into a chicken, mud crab, or rabbit every few levels.
Followers have Level caps/Max Levels. Followers such as Uthgerd and most favor followers have level caps of 30, housecarls have a level cap of 50. The only follower that will Level up into the 80's is J'Zargo from the College of winterhold.
Followers max levels and stats can be found here
https://docs.google.com/spreadsheet/lv?key=0Aly8njaU3H1adGJYTlJaUnRxRUN2RnM5MkxPaU1mQkE&toomany=true
Get to Wabbajacking, and report back...on the other thread I have 4 happy players...one just reported his formely useless Lydia just soloed an Ancient Dragon by herself.....My Lydia can tank high Level Bandiat Chelfs, Master Vampires, and Drauger Deathlords no Problem.
This will make your followers viable so they actaulyl watch your back instead of you having to babysit them. so until they patch followers, the only way to get them their proper levels, HP, and Stat increases is to Wabbajack them
