I am a Redguard.
Only level 8. I have spent my perks in three areas.
1. One handed
2. Archery
3. Destruction
Giants are impossible. They are easily the hardest character in the game so far. Are they harder characters? If so, i might just stop playing,

Why would you stop playing cause something is too hard to kill?
I wish there was more mobs in this that are too hard.
I wish this game would be a mix of Skyrim with Dark Souls, where every fight will be a fight for your life, and not just swinging your sword and waiting for something to die.
I faced a giant too, and he stomped me to death in 1 hit. I was laughing and was really glad. Finally. Not some nerd herd giant with a club you can bash to pieaces at low level.
Im sure you can handle giants well when you are in your 20+, as it should be.
Sabre cats and Trolls are also tough, and its awsome. I want to be able to die, not be some immortal thing running around in my knickers killing enemies left and right.
A game is not good until you know that you can easily die from an encounter and need to bring out your best play to succeed.
Im also glad Skyrim have taken away the easy settings and "normal-Adept" is the only setting you can have as lowest.
Personally I think they should have removed that too and had one setting, Expert. And left it at that.