You didn't mention the most important:
The HD size and how it is partitioned.
Advise:
Make a small boot partition (300Mb is almost an absurd space to that partition).
Then make a Work partition (can be up to 1Gb), if your HD is big enough.
Then make a 1.9Gb Games: partition (yeah!), and use the leftover as you want. Files, music, work data, animations, etc.
Just two more tips:
1. any partition who pass the 4Gb border must partitioned and formatted using the OS3.9 HDToolbox.
2. Use preferably SFS instead FFS for those partitions.