The Truth About Paladin Talents

So, Blizzard sucks at creating "good at everything, but great at nothing characters" such as Paladin's and Shaman's ? But with your talents are you able to specialize in something ? Because with the Holy and Retribution trees on Paladin, you can't specialize. You have damage spell at bottom of Holy tree and Buff spell at bottom of Retribution tree, it's these little things that have made Paladin retardly made. And the fact that every single patch Paladin has been nerfed, not 1.06 ( we didn't get nerfed, but we didn't get a buff, we got some bug fixes that only affected other people ( the ones that blizzard only seems to fix ) ) makes you want to play a Paladin doesn't it ? And no, I AM NOT going to reroll, just think of all the money I've wasted playing this game, and I am supposed to just restart ? I'd rather not.