First Wave of Disk Benchmarks
First off, I will heartily admit that these benchmarks are by no means good, I just wanted to do them quickly. They were performed in Arch with the gnome-disks tool's built in benchmark.
All this tells us is "striped SSDs are faster than single HDDs!" What I really should do is get some good (and identical) HDDs and perform the same test, and test the SSDs standalone as well. I don't want to fiddle with it that much, so this is what we have.
It would be better to run these tests bare metal, not through a VM/Host, but seeing as I am going to be using this machine solely for VMs, it made sense to me to know what the VM performance is going to be. I don't really care about the absolute performance, since all it will tell me is how much overhead ESXi is injecting into the situation, and I don't really care about that.
In any case, I think my RAID1+0 of four 240GB drives will perform great.