I tried shield and dual with two different characters, and I'm loving both. Shield is so much more interesting/fun compared to the previous TES (and other) games. I love bashing around, I also love the idea of covering behind a shield from the breath of a dragon (very thematic, where in other games you would be encouraged to just strom up and hack, so to take less of a beating yourself, here you advance shield up against magic; feels like some movie really, shame the perk comes so late on the tree).
Dual wield also looks cool (I admit I am compelled not to use even sized weapons, looks much better, if you have sword and dagger). It's nice that you don't need to change weapons in certain situations (my dream is a silver dagger in the left against undead, and strongest available sword; have yet to find a silver dagger tough

, any ideas where to look for it?).