InsanityWave said:
deathmatch doesnt have many 9 Year old screaming at you as halo seeing as its on the PC and most Nine year olds have that kind of money to get a decent gaming rig XD.
Agree, except some mods. Often there is a "stupid evil" minge in Gmod. I was a good minge, I stayed offline until I actually knew what I was doing.
Comparing the series of Halo to Half-life:
Story
Halo: Aliens are evil. Kill them. You are a super badass. Big rings shoot lasers that blow up the universe. Who cares about story, I'm just trying to have fun!
Half-life: You are a theoretical physicist trying to escape a portal experiment gone wrong and disappear. Years later, you suddenly reappear to fight in a rebellion.
Winner: Half-life(Even if I didn't give details for it, I know the Halo story!)
Control
Half-life: Standard controls
Halo: Standard controls, but on a console controller, so better.
Winner: Both
Linear
Halo: Shoot things, drive, get to the next level.
Half-life: Shoot things, drive, find out where to go, get to next area.
Winner: Not much to judge from
Mods
Halo

notice, only console) Halo 3 had a good map creating system.
Half-life: Full SDK only for people who take it seriously.
Winner in difficulty: Halo, easy and works well.
Winner in results: Half-life, amazing mods, I don't spend enough time to learn how to make any.
Multiplayer
Halo: 5 year old kids screaming at you over the mic.
Half-life(CS:S,TF2,mods, L4D): People willing to make servers that outlaw that.
Winner: Half-life
Overall Winner: Half-life.
Both are good, Half-life is better, this post is too long.