What class felony for DUI's would send to prison with no property loss due to accident nor injury to someone?

DUI third is a five year felony in Michigan. You could go to prison for it.

Assuming that the DUI is the only offense, a fourth (or more) offense within 10 years is a "wobbler" and can be charged as either a misdemeanor or a felony, a second (or more) offense within 10 years of a prior conviction for felony DUI can also be charged as a felony. Another lawyer may have additional situations but these come directly to mind. Every county that my law firm serves will charge a fourth offense within 10 years as a felony, but you should check with a local attorney regarding the local prosecutor's policy.

Having three prior convictions may result in a prison commitment which would be served in a county jail.

In Texas, the 3rd DWI in a lifetime is a felony. It can be reduced, but it can be charged as a felony of the 3rd degree (meaning 2 to 10 years in prison, unless there are other enhancement paragraphs to the punishment.)

If there was no injury/accident, then it would have to be a 4th DUI within 10 years to be filed as a felony.