Latency tests: Linksys WRT1900ACS vs E8450 (UBI)

I did some ethernet connection bufferbloat testing of the Linksys WRT1900ACS against the E8450 (UBI).

The WRT1900 gets more download speed, but the E8450 seems to show better latency score. But look at the big difference between them on the "Unloaded" number (WRT1900ACS=17ms | E8450=41ms). Does the big difference in "unloaded" matter? Those who know this stuff better than I do, does one router look like a clear better performer?

E8450 (UBI)

WRT1900ACS is pictured below: