Whichever is better written

Depends on what they're in.

Both. Each kind of character can be engaging if done right.

Depends.

Both

Both

Depends

Both, but that depends how written both are. Just because one is sympathetic doesn't really make a good written character all the time, and not all PEs are well written too (look at MCU Malekith).

Personally, I prefer a combination of the two. Someone who is absolutely revolting, but is still unmistakably human. The MCU's Mysterio is one of my favorites. He's an egotistical, self-serving, douchebag, but he only goes after Peter when provoked.

Oh that's a good one I gotta admit. I like those examples.