I don't think I've ever done the trinity. Too lazy! Maybe once. Usually it's no crafting or just one. My characters have become more and more one skill, low level.
A vamp skilled only in enchanting so she can use her vampiric drain at will.
A destruction mage skilled only in destruction. (my fave so far to run the main quest and civil war)
An archer skilled only in archery.
Assassin skilled only in sneak.
Those are my three faves. I've played around with a level one kitty vamp lord dressed in Miraak's robes and blood rings. Together with shouts he's pretty formidable. Killed Karstaag with him.
Playing around with a level one dragon born right now. Attempting a werewolf transformation exploit to eliminate her shout cool down. See how it goes. I did one using the restoration loop to eliminate her cool downs. It was a lot of fun, I mean a lot of fun whipping out shout combos. But running the restoration loop necessarily leveled her alchemy to 100. The new character sits outside the underforge awaiting night time and ultimately her new life as a werewolf. Then it's off to find a follower and attempt to equip the 5 amulets of talos she is carrying.