Charger paladins are incredibly fun and powerful. I had a 2-handed charger last ladder, and it was great, although fragile without lifebuffs (-> partying with Druids and Barbarians is preferred). Diamonds in your armor/helm will be your friend, especially if you are going with 2-handed weapons.
The great thing about Chargers is that you can use any aura you want. The damage auras don't give such a significant boost to your damage, so you can live without them. I used conviction as my main aura to help elemental casters, but it's up to you. I can imagine a Prayer/Medi stacked healing charger to be very effective too. Or Salvation.. you have lots of options.
I put 1 pt into every aura so that I could adapt to my party.
Here is a good read about chargers. Most of it applies for HU too.