Alright, a slight back on topic post here:
1) Sins is a 4x RTS
2) Crysis is an FPS
3) Sins is about gameply, balance and fun
4) Crysis is about uber graphics lawl
5) Sins has unique strategies that can be countered by other unique strategies, different races, multiple races, and in depth storyline, A LARGE MANUEL, Pink Space Ponies, and tons of other great features and ideas, as well as an EPIC scale!
6) Crysis has a guy who shoots things, and they ripped the story off a previous game. Ice aliens are stupid.
7) Sins has a unique online idea for long and HUGE maps (epic scale)
8) Crysis is wanna be CS 1.6 with better graphix
9) Sins community is pro.
10) Crysis community is a bunch of whiny 12 year olds (ok, its generic for any fps game)
Overall= Sins by a LANDSLIDE!
In other news, I finally beat Bioshock, which ALSO has an epic storyline and a unique gamplay which doesn't get boring at all.
@ ron: fences are around graveyards just in case of zombie invasion.