I get ripped to shreds when I try to get in a toe-to-toe fight with my thief. That's probably because most of his perks are focused in sneak though.
I did get in a fight where I was actually able to pull out a mace and an axe, and did a LOT more damage than with my daggers.
That's the thing. I'm somewhere in between. Most of my points are in sneak too. But I am trying to fight toe to toe. I've been trying to get certain skills up to help though. It's a hard balance to find. I'm around riften and have explored a lot of the map. But i'm about halfway through the story. I'm just getting into scale armor. IT's a lot of work.
One handed and Sneak and light armor are my main atts.
But you need points in bows, enchanting and smithing too.
Especially considering I wasted a couple points early on this char not knowing what I was doing.