One-handed - Balanced. Dual weilding 1 handers is pretty useless becuase of the lack of block ability and the negligible damage increase. Otherwise Sword/Shield, Sword/Spell is a fun combination.
Smithing - Completely overpowered. For the low low cost of a few hundred iron daggers, you too can completely ruin the fun of looting, dungeon exploring, or quest rewards.
the game not feeling genuine or fun after only 30 or so hours of gameplay.
OK first 30 hours? You obviously hadn't played the builds you speak of extensively.
On the topic of smithing. It is balanced if you don't power level it. That is a player choice.
Now the one thing I can't stand is dual wield one handed bashing. I'm now level 58 and have been primary DW since I found two axes on the ground. I started at Master and stuck with it. Between heavy armor and dual wield. With very minor enchants (gear found) and smithed dragon bone (also not exploited) you can easily reach 80% damage reduction... This alone really makes the shield more of a tool than anything else.
You say not enough damage. My two one handers with, all found; amulet and ring boots and gloves I made but not exploited, +one hand damage gives me about 275 damage per weapon. Now factor in one DW power attack, using power attack on both hands at the same time, does a ton of damage. With the damage output of DW you don't need to block.
Ancient dragons are easily destroyed with my build... I can kill one within 10-15 seconds of landing... Oh wait that was when my one handers only did 190 each... I just found a new amulet last night that increased, plus a bit better ring.