The variety in armour was better in DS2. In DS1 going str build it was basically Havels or nothing. This time round there were plenty of viable armours.
Weapon wise I would say the thing that pissed me off most in DS2 was the fact that certain weapons weren't available until NG+. And early on getting anything decent wasn't easy. Whereas DS1, because of the world layout, you could rush certain shields and weapons right at the start without needing to kill any enemies/bosses so it valued knowledge of the world layout a lot more. And because of the way everything was so connected you could rush grass crest shield, fire keeper souls, scythe and a number of other really useful items as soon as you hit the firelink shrine. All without needing to kill a single enemy.