Isaac Clarke is possibly the best playable character in any game ever when it comes to realistic movement and sound. Dead Space is such an awesome game - I have become thoroughly obssessed with it. XD I find Isaac really quite attractive - it's pretty obvious that badass armor really does do it for me. XD
Go play it.
I've completed it on Impossible with just the Plasma Cutter cos I'm bloody hard-core.
This is my tribute - 3B pencil, about 5 hours on and off.