What chacacters can actually do hell single player

[Nicodemus Phaulkon]

Im talking about being able to fight more time than you spend running away.

Who said running away wasn't condusive to combat? Stringing out groups of monsters to more effectively deal with them isn't allowed? Who's rules?

How do you measure "able to handle"? Does the fact that you may die from a single-strike Rot Walker, yet recover your body to fight deeper into the act mark your character as "unable"?

Are you referring to the ability to kill the denizens of Hell difficulty? Are you referring to the ability to weather their damage, but at the expense of doing damage yourself?

My werewolf can kill anything in Hell difficulty, survive their attacks, yet cannot deal with physical immunes.

My paladin can become a Patriarch by himself, and even thrive in p8 settings, yet can be laid low by a unfortunate combination of less-than-full life and a Rot Walker tag... or running willy-nilly into a boss group of aura'd Pit Vipers... or discover a nicely snoozing club of Hell Lords that seem to wish to be PI, fanated AND frenzied when they wake up.

My amazon or sorceress can handle anything the game gives her if allowing the "luxury" of running, teleporting or otherwise stringing the combat out to their advantage; except that under some circumstances the situation will be untenable and she'll be killed in a blink of an eye.

The randomness of the spawning with this patch casts the ability to "survive" into a wide open paradigm... not some pigeon-hole.

And then, of course, there's the situation of multiplayer, which takes everything I've just said about wide-open interpretation and blows it out into the vastness of space.

Im curious and trying to get some perspective.

Try asking pointed questions of specific nature in order to fulfill a standard that you can measure by. Your current query is the equivalent of "What is the meaning of life?".