I play a prot pally and yeah, it's probably the easiest class to nail the basics on. However, I would like to clear up the misconception that we don't have an extensive toolkit. While not as sexy as many warrior abilities, we do bring a lot of raid utility to the table via Lay on Hands, Word of Glory, Holy Radiance, Divine Guardian (raid bubble), Hand of Salvation/Protection/Freedom/Sacrifice, Cleanse and Divine Shield. I tanked with both my pally and my warrior for all of Wrath and the two classes play very differently, despite both using a shield. Good luck with your choice!
How does a PC gamer change a light bulb? He doesn't. He goes on the forums and QQs about it being dark.