Zenoclash games had 1st person melee combat as well.
Dark Messiah of Might & Magic was mentioned here, but after the relatively cool (for the time) first couple of environmental actions like...kicking someone into fire, or kicking someone into spikes, or kicking someone into a pit, it got boring fast
StingingVelvet: I recently finished a replay of Dishonored and tried something relevant to this thread. I always play games like Dishonored in a stealth style, which is what they're mainly designed for. However you can play it as a balls-out first-person melee combat game if you want, and after finishing it again I played the first mission that way to try it out. I think it's probably a good example of first-person melee combat. Cool powers, nice animations and visceral kills.
Problem is, I'd still rather play that game stealthily, because it allows it. Which got me thinking about games like Skyrim and how I always opt to play stealthy or magic/archery shooter style if I can. I don't think I'm really a fan of first-person melee, if I always take another route if possible.
Unrelated, but I like playing games that allow stealth as stealthy too, and nonlethal if I can, which is what frustrated me about Dishonored. While storywise it is mostly possible to play nonlethal (except everyone keeps going on about your awesome assassination skills), the default layout has stabbing mapped to your main action, and you soon run out of nonlethal upgrade options, and have to pick violent ones just to use the upgrades.