Install VMware ESXi 6.0

I have a DELL c6220 ii server having 6 HHDs each of 1.2 TB. This server supports RAID 0, RAID 1 and RADI 10.
I am trying to install VMware ESXi 6.0…

Which Scenario best suits
1. Create RAID 10, so that I get 3.1 TB for usage, but I am not able to spit ESXi and VMFS during ESXi installation. Everything including VMs will be in entire 1 Data Store.

2. If I go with RAID 1 with 2 HDDs, I get 1.1 TB and RAID 10 with 4 HDDs I get 2.1 TB, with this while installing ESXi I could see 2 Partitions like 1.1 TB(DataStore 1) and 2.1 TB(Data Store 2). In  this way I can split the ESXi to be installed on datastore 1 and VMs can be installed on datastore 2.

Problem here since ESXi installation uses hardly 1 GB and If I create any VMs in datastore 1, the VMs will be part of RAID 1 and any VMs which I create in Datastore 2 will be in RAID 10.. This makes VMs to participate in 2 different scenario’s.

Could some tell me which method is good to go?