I really enjoy the flexibility of this class system . Once you get over the initial obligatory ~20 levels, or learn to make batch files with the console to load all your perks and stat sheet, there really are a lot of options.

Right now I have an almost level 50 Atronach Illusionist. Some points in alteration for armor, sneak for muffled movement, alchemy for potions and poisons, and smithing/enchanting of course.

I use “Enchantable Unique Armours and Reclassified Masks” so I can give myself a custom Nightingale set and enchant it as I see fit. With this build I keep mainly to the shadows, but in more of an elemental sense than an assassin archetype, since this character has more of a magical focus.

I can drop two ice atronachs without being seen, then shuffle between Calm, Fear, and Fury to thin out or scatter a crowd, to isolate single targets I can sneak up and backstab before vanishing back into the shadows as the chaos continues.

It is a much more spectator-oriented playstyle, that’s for sure!

Something I would REALLY like to see and will probably do myself is some form of DoT combo system, where you can build dots that roll and once you get them to a certain stack size another (or the same spell cast again) will "detonate" them, with varying effects based on what sort of spell it was (fire, poison, etc.)

Also, the ability to have the health bars always appear over every in-combat hostile in range would be a HUGE improvement, if anyone has seen one of those.