Seriously - Intimidate was changed for DDO and it doesnt work like in pnp. So just go all the way and change the Paladin skills to add Intimidate.
Why? Capstones. People take 1 or 2 fighter levels so they can be a real intimitank - and then lose the capstone because Turbine wants only pure classes mostly.
Going pure paladin and losing 12 points of intimidate makes it next to useless to even bother - either you hit high numbers or do even put points into it.
Also - Bluff should be like Diplo - area and lasts longer than 1 hit. It is a rogue skill specifically meant for various things - one of which is to be able to get sneak attacks. And it sucks bad in DDO for that goal.