Dual Boxing Paladin/Paladin vs Warrior/Paladin

To get a little break from my warlock/priest grinding I have been trying a warrior/paladin combo over the weekend in the classic melee/melee+heal style. It really felt -heavy- to play, if that is the right word to describe it. So, after reaching level 20, I decided to give a paladin/paladin combo a try, which seemed to be much more fluent to play.

I guess my question is, will the warrior/paladin combo be better in endgame pve and pvp than a prot/holy for pve and retr/holy or even retr/retr paladin combo for pvp?

Thank you for your time.

O.