Did OP even say he was doing DiD?
Personally, I've never been one for "builds" or min/maxing and exploiting every perk and level gain to be the best yadda yadda. AKA powergaming. I'll go into a new character with a basic idea. Maybe do a bit of research to make sure I'm not absolutely crippling myself, and then go at it, and stay a bit fluid with skill leveling and perks.
My main Skyrim character is similar to my Main Morrowind character, and my only Oblivion character. A Bosmer specializing in archery and stealth above all, and pretty good with smaller blades and light armor. Support skill being lockpicking of course (and acrobatics in Morrowind, but who didn't do that?) I have never changed the difficulty, so it's on whatever it's normally on, and I've found I get through most bad guys pretty easily, and I dumped quite a few perks on stupid stuff early on, and have more than my fair share of leveled up skills that don't help my case against levelled bad guys... I rarely sip potions or use spells in combat. I don't use spells to buff armor or weapons, and only recently started dual wielding... So, sometimes it's best not to take everything the "pros" have to say on the subject of good characters, or weak ones, as mine would probably be classified as weak in a battle, even though I do very well.
There's only been one spot in the game that I've had repeatedly hard time beating. Doing the quest for Azura's star I think, when you go to the dream world with all the Draemora... I was just flat out getting demolished every time.
So, I dunno, go look up a min/max build if that interests you. Or create a basic play style that seems pretty fun to you and just go with it? I just started my first EVER magic user in an Elder Scrolls game, mostly so I could see the Imperial side of that story line, but also just to play around with magic and stuff, he's going to follow more of the dark path with necromancy sprinkled in. Not sure exactly how I am going to level him, but I'm looking forward to it. Kinda want to do an unarmed Orc build, too... I just keep going back to my Bosmer Assassin, though...