Proficiencies: Really? No, that stuff is just gimmes. Anyone who seriously puts any real value on martial weapon and heavy proficiency is crazy. And what kind of Paladin wouldn't have those?

Hit Die: A d10 is pretty standard. A good HD for a melee class is d12. Getting a d10 just means you aren't getting nerfed in health. Would you really give a Paladin a d8?

Skill Points: 4 skill points should be the minimum outside of Wizards. Period. Giving a melee character 2+Int skill points is just insulting.

Saves: Good, but not incredible. Buffing a weak save is hardly difficult.

BAB: Again, this is par for the course. It's probably the most powerful thing you listed, but would you honestly give them 3/4? Seriously?

You're calling that "very powerful"? The class features are good, but there's nothing broken here. This is like, a solid Tier 3. Maybe Tier 2 if you give them spontaneous access to the whole Cleric list; that's probably not a good idea. But seriously, straight up power? Cleric still wins, hands down. So does Druid, Wizard, Sorcerer, and Psion, certainly.

Is it massively better than the old Paladin? Yes. Is it better than the Fighter? Yes. Is it better than the Monk? Oh gods, yes! And if it wasn't, it would be an utter failure of a class - just like those three are.

Is it better than a Warblade? Eh... maybe. Not sure. Probably, but only just so.