Hey,
I hope this helps a little bit, its really hard to pick for talents for a pally, since they are a very good Hybrid class. There are so many variations that will benefit in pvp, BG’s, raid, and questing. I have made a tree for each spec, and dipped in to other spec to help out. Although it is all personal choice, for early lvls, I was Retribution, now I’m in my 40’s I went to Protection for easy grinding, and survivability. Later on I might go holy, I’m not too sure.
Holy - http://www.wowhead.com/?talent=aVxhMgzheoxV0tcrc
Is always wanted in pvp, and BG’s, and @ the higher lvls with dipping into Protection you will be able to fight and take a small beating as well as heal effectively.
Protection - http://www.wowhead.com/?talent=sVxhMxZV0xIMhdguxo
Protection is a great grinding build, and it will take a lot to take your paladin down. Once maxed out it is good to dip into Holy, b/c when grinding, you do get into tight spot and need to heal yourself and it is good to max the healing you can do. Stamina and defense is your friends.
Retribution - http://www.wowhead.com/?talent=qEZZA0xtMcuiIst
I find Retribution is good for the lower levels, for the higher lvls it get a little tough, and isn’t really wanted to much in raids. But you sure can pack a punch with it, though survivability is still good, but not as awesome as protection.
I hope this helps, let me know what you think, or what any one else thinks
Jhua