I’m trying to decide which I want to commit to for my warrior. I’m pretty sure sword and shield is going to end up being better power wise but I care more about how fun it is to play. At first glance sword and shield looks more tactical and less hack and slash but you can block and bash with a sword aswell and the slower swing speed of the two-handed weapon kind of forces you to time your hits better. Then again one handed is much more versatile. Gah!
Personally, I was in the same situation. I ended up choosing sword and board over two-handed weaponry. Not only did I find it more fun, I also found it to be far more effective in terms of finesse, damage output, versatility, and defense.
Honestly, I haven't found a reason, from a gameplay perspective, to use a two-handed weapon over a one-handed weapon + shield combination. The damage gap isn't that great and it's only shortened when one upgrades his weapon damage via the crafting trees. Two-handed weapons have more range, but they're much slower to strike and your movement is penalized to a large degree making that range fairly useless and a non-factor in most cases. Two-handed weapons can bash but a shield bash has more range, fires off slightly quicker, and has a much more effective stagger (Which is only made even more effective if you meditate on Fus).
Even if you don't mind taking blow after blow (Which most Youtube videos seem to suggest that a lot of people are content with just standing still button mashing and taking blow after blow), you're better off using Dual-Wielding. It's a far better choice in terms of damage output than two-handed weaponry. It's also a more versatile choice because you can switch out your second weapon for a shield and still be viable damage wise.
So essentially, two-handed weaponry falls short when it comes to offense and defense (And fun ... o.O... ).