As a start, there is a new release for your XPS' firmware. Dell marked it as "Urgent" and list "System stability enhancements" in the change log. Even if this does not resolve the issue, I am certain Dell support will request you do this before they will assist you further.
Dell XPS 13 9350 1.5.1 BIOS Driver Details | Dell US
Looking at the crash dump, have you noticed that most blue screens are showing "Critical Process Died" or are they across the board in their error messages? Unfortunately the minidump did not contain much information, and it would help if we could get the full dump. However the full memory dump C:\Windows\MEMORY.dmp is the size of your ram, 8GB, so it may be annoying to upload and download it, even after compressing it.
You may want to switch your dump type to "Active" which will only store the memory in use, which will generally be a much smaller amount. Here is a guide on changing crash dump settings: Configure Windows 10 to Create Minidump on BSOD BSOD Tutorials
I also saw that your event log reported some bluetooth issues, have you been noticing problems with that? Here are some examples:
Code:
Event[7]:
Log Name: System
Source: bcbtums
Date: 2017-09-11T17:43:20.551
Event ID: 1026
Task: N/A
Level: Error
Opcode: N/A
Keyword: Classic
User: N/A
User Name: N/A
Computer: DESKTOP-3B05JDE
Description:
Failed initializing BT device, failed RAM patch download.
Code:
Event[8]:
Log Name: System
Source: BTHUSB
Date: 2017-09-11T17:43:22.853
Event ID: 3
Task: N/A
Level: Warning
Opcode: N/A
Keyword: Classic
User: N/A
User Name: N/A
Computer: DESKTOP-3B05JDE
Description:
A command sent to the adapter has timed out. The adapter did not respond.
Code:
Event[189]:
Log Name: System
Source: BTHUSB
Date: 2017-09-12T21:45:36.497
Event ID: 17
Task: N/A
Level: Error
Opcode: N/A
Keyword: Classic
User: N/A
User Name: N/A
Computer: DESKTOP-3B05JDE
Description:
The local Bluetooth adapter has failed in an undetermined manner and will not be used. The driver has been unloaded.
Oh and here's a fairly good guide on fixing your path environment variables..