Yeah, I play 360 and I think a hardcoe mode similar to new Vegas would help the main problem I have with this game. I restart all the time. I dont like it when my characters get too over powered. Haven't had a single character get past lvl 38. Being able to easily kill everything at lvl 20 , moved me to an orc on master difficulty. After powering up my Orc warrior I had to restart due to needing a bigger challenge and forum talk about mages being underpowered compared to warriors/stealth characters.
A hardcoe mode, I feel, would slow down the game for me. I would have to consider buying new things and carrying new things. All the money I have wouldn't be invested into making me as powerful as I can be, but instead used for preparing for trips out of towns. I think this would be a great option to add.
I dunno doesn't have to be many features, hunger/thirst/sleep. Maybe body temp maaaaaaaybe. Would weather effect body temp? Rather than just whole areas that are considered colder?
I've had this same problem, especially with my stealth characters. I became so powerful that it didn't make sense to even go into dungeons stealthfully. I eventually remade this character as a vampire with only 100 health. It's pretty amazing to play like this. Every fight is a struggle and once you start learning how to fight each enemy, it really rewarding when you bring them down knowing how fragile you are. The daylight penalties add a lot of hardcoe elements as well. I'm constantly watching how much stamina and mana I've used and eating fondu and vegetable soup to restore them. Also, the chance that I will become a level 4 vampire, upon exiting face travel, has prevented me from using it at all.
With this build, having an insane bow and daggers has a purpose, overwhelming offense. I use illusion to distract large groups of enemies so that I don't have to face them all myself. I actually use speech craft to avoid confrontations or take the easy way out of a situation. I've even found that the new horse combat, with my bow, helps me travel around the world quickly during the day.