Don't be Silly
Don't be silly Sunshine is a good film but is NOT the best SCI-FI of the century it barely passes as a Sci-fi film it more a space horror.
The CGI looks good because everything in the film is constantly dark.
It is not comparable to Avatar either because Avatar's not a Sci-Fi film anyway it's a Sci-fi 3D animation.
Here are some better Sci-fi's that are less protentious