According to Raising The Bar
No mention of Prowler, so, yes it is hard to follow you when you’re making things up as you go along.
My new favourite is Agrunts. Its just so satisfying to kill them^_^
I find anything is satisfying to kill if you use the spore launcher from opposing force.
Was the sporelauncher that beige thingy?
Hey I love the ‘Zombine’ and ‘Headcrabs’
So, this was my first post in a ‘not-german-forum’ ^^
welcome , to the real world
I can’t believe that noone has mentioned cockroaches yet!
Squish can’t get enough of that noise. 
Half-Life 1 I’m a big fan of the Controllers, I just find them fun to kill.
Half-Life 2 and Ep’s, Hunters, Striders and Gunships, always have a blast engaging those enemies.
New desktop wallpaper.
Excuse me for using Halflife.Wikia.org instead of blowing 300 bucks on a damn book.
Ahem, it’s 35$ bucks…
For cuteness, Headcrabs… you could just head-hug them!
For fun, Hunters… the squish of when you run them over… oh ye…
I know whatcha mean. Sorda…
I’m not really sure what my favorite is, but the first time my friend saw Half-Life a few days ago, he saw a Hound-Eye and yelled “BABY PIG!”
I’m glad you like it. It’s encouraging! 
There’s a 300 dpi version at my B&W thread.
/exits lurking mode
Strider. They are one of the most original enemies I have ever seen and are perfectly executed to create an intimidating, boss-like character which is still very maneuverable for its size.
Pumping the scientists full of lead is pretty satisfying and a good way for relieving stress, so I’d say my favourite are the science dudes
Original? Really? I was thinking war of the worlds…
EDIT: I wonder if Adrian Shephard counts as a creature…he’s pretty kick ass.
Shephard is a disease - Am I the only person on earth who does not love him like he’s some sort of computergame-jesus?
The Shocktrooper is easily my favorite, Race X are awesome.