I strongly dislike the death penalty in Hellgate london. Why? Because it encourages you to stop playing.
Dying in Hellgate: London gives you an XP penalty for 5 minutes. Because it is timed, going afk for 5 minutes is encouraged. I much prefer the penalty of City of Heroes, where instead you just accrue XP debt, effectively cutting XP gain in half for a set amount of XP. Though, in a game where enemy level is often dictated by character level, it ends up not being much of a penalty at all.
P.S. It has been way too long since my last post. I need to come up with something I can make more regular posts about.