RAID Stripping VS Filegroup Stripping

We have a production database (SQL Server 2005 SP1) of 15GB size.
I was wondering what is the best? To use RAID Stripping or Filegroup Stripping?Or both?
First Choice:
If I use RAID1+0, I can have 4 physical disks ( 2 for stripping e.g. C: D: and 2 for mirroring lets say C-Mirror: D-Mirror: ) but I could see only one logical disk lets say L:. The RAID mechanism will break my datafiles ( and also every file of my server -operating system files also, I suppose-) to C: and D:.
Second Choice
If I dont use RAID1+0 but RAID-0 then I can have two seperate RAID-0 devices e.g.
1. RAID-0 C: and C-Mirror and I could see one logical device , lets say L1
2. RAID-0 D: and D-Mirror and I could see one logical device , lets say L2
Now I can save my operating system to L1 and I can create a filegroup FG1 with two files, lets say L1:myDb1.ndf and L2:myDB2.ndf. In this case, sql server will choose how to make the stripping of objects belonging to FG1 since the files L1:myDb1.ndf and L2:myDB2.ndf are saved in different physical disks

What is the best?

What if I could combine the two solutions? If I had RAID0+1 (only one logical disk - see First Choice) then, could the creation of a filegroup help me?

Thanks

Filegroups don't generally help much with performance, especially given a RAID 10 configuration. Filegroups are better used for easier administration of very large databases. I would go with one filegroup on a RAID 10 configuration, although I am sure there will be other opinions.

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Brad M. McGehee, SQL Server MVP