Ezekiel said:
Don't know. But I'm sick and tired of Japanese swords being in everything, as I said in my Off-topic thread.
*Teleports behind you*
"Are you insulting my 500 year old blade that had its metal folded 1000 times?"
OT: Lots to chose from
Halo 2 - Energy Sword
They're terrifying when you come against the Elites wielding these in the first game. Finally getting to use them yourself in Halo 2 and then taking it into multiplayer as well was very satisfying.
TES - Chillrend
It was my favourite sword in Oblivion because of how fast and powerful it was. I honestly thought it was a little too obscure to show up in Skyrim again, so I was pretty excited when I saw that it just happened to be in Mercer's basement (though I do have to wonder why he wasn't using it instead of his other weapon).
007 Nightfire - Sentinel
It's like the predator missiles from CoD, only you get more of them and you fire it off your shoulder and fly it around the map. Stupidly OP, but a lot of fun to use. It did have some really cool counter play though in that you could shoot the missile out of the sky. Many fun splitscreen moments were had around this weapon.
Guild Wars 2 - Warrior Greatsword
This is the reason why warrior is my favourite profession. You've got a satisfying auto-attack, an exciting high damage skill, a strong evade/movement skill, some range and CC, and a high mobility initiator. It's easily my favourite moveset in the game.
Mount and Blade Warband - Any lance
There are few things in gaming that are more satisfying than leading a huge cavalry charge into an enemy flank and couching your lance directly into an enemy lord's skull.
Edit: Pretty sure I'd be doing a huge disservice if I didn't mention my favourite Souls series weapons
Dark Souls 3 - Ringed Knight Paired Greatswords
Yes, I know the phantom range of the L1 is stupid, but these are just so damn fun. They're ridiculous in PvE and pretty good in PvP.
Dark Souls 2 - Ricard's Rapier
The R2 is just dumb, but in a fun way. Also, rapiers were by far my favourite dex weapons in this game.
Dark Souls - Claymore
Just an all-around solid moveset with great damage. Plus, you get it early on in the game, so you get to fully appreciate its greatness from almost start to finish.
Edit 2: I just remembered... Saints Row 4 - Dubstep Gun
I normally hate dubstep, but this gun is just so fun. It's extremely powerful and random people start dancing while you fire it. Everything comes together so nicely for this weapon that I actually find myself enjoying the song it plays as I shoot alien ships out of the sky.