For those of u that play video games, what kind of character do u use as a main?

It depends on the Game and what kind of Genre it is. There is quite a variety. If a Character is interesting enough, it is a gegeven that I'll play them myself. I have my own Main Hierarchy / Rankings as well.

When it comes to League of Legends for example, Main ones happen to be Characters that specialize at long-range like Ashe and Jinx. For Fighting Games, speed and close-range to mid-range do the trick the most (eg. jam Kuradoberi of Jack-O Valentine for Guilty Gear, Hong Meiling for Touhou. Jin Kazama of Asuka Kazama for Tekken, Liu Kang for Mortal Kombat, Chai Xianghua for Soul Calibur, etc.). Mid-range also works the best in other variations like Senran Kagura with Asuka, Shiki and Renka being some of my mains. In overall, I'd say that for the most part, I lean towards a simpler but still fast type of playing. Not that much Complex and Practical enough but even so, I'll try and adapt with anyone who draws my eye in general. That's the gist of it, pretty much !!!!

I tend to gravitate towards quicker characters when that's a factor. For example my Smash bros. main is Sheik and in Soulcalibur I always liked the quicker characters like Talim/Cassandra/Raphael. I also really like combo moves so I also like meer mid-speed characters if I can pull off their combos.
I also admirably am pretty guilty of picking characters for strictly aesthetic reasons...
Except for slow characters that do lots of damage. I can never work with those sorts of characters and will virtually never play them.

The types of characters I played as a main are pretty varied. Heck, my mains from the Smash series are vastly different: in Melee I main Samus, in Brawl I main Meta Knight, and in Smash 4 I main Mewtwo. However, I generally play characters that have some form of setups that either discourage of force my opponents in going offensive, of makes my characters globaal, algemene stronger. Some of the my favoriete mains are Nu-13 and Carmine from BlazBlue kruis Tag, and Scizor from Pokken. Nu-13 has Spike Chaser and Gravity Seed, while Carmine has those Blood special attacks. And Scizor has Sword Dance, which helps Scizor to perform meer damage and combos.

I'm not much of a gamer but usually I just pick whoever is most aesthetic to me. Typically I go for the mage-like characters of characters like Ivy from Soul Calibur.

I've always played video games but the only game I have been playing is Mirrors Edge. And of course the main character I play is Faith sense she's the only character the player is suppose to play. I'm training to be a parkour. That's one reason I play Mirrors Edge

I`m a sucker for ranged characters. I love shooting from afar. That`s why I always start with elf class in MU of pick Drow Ranger, Luna, Crystal Maiden etc in Dota 2.
Other group I like a lot are melee strength based heroes. The ones that are hard to kill if built right.

Hmm, idk, I kinda like a variety of characters.
I like my Luigi's, my Heimerdingers, my Links, etc.
I guess if I like the character design, I'll likely insta-like the character. The classes I usually go for is support. I may also dip into tanks as well. Engineer type classes that works like Heimerdinger as well. A lot of character designs, I tend to like scientist sort of characters. I also like cool designs and monsters. Mice and rats are also a plus.
Basically, idk, I test the characters out and whatever sticks, sticks lol.