  We assess the robustness of the two highest rungs of the "cosmic distance
ladder" for Type Ia supernovae and the determination of the Hubble-Lema\^itre
constant. In this analysis, we hold fixed Rung 1 as the distance to the LMC
determined to 1 % using Detached Eclipsing Binary stars. For Rung 2 we analyze
two methods, the TRGB and Cepheid distances for the luminosity calibration of
Type Ia supernovae in nearby galaxies. For Rung 3 we analyze various modern
digital supernova samples in the Hubble flow, such as the Cal\'an-Tololo, CfA,
CSP, and Supercal datasets. This metadata analysis demonstrates that the TRGB
calibration yields smaller $H_0$ values than the Cepheid calibration, a direct
consequence of the systematic difference in the distance moduli calibrated from
these two methods. Selecting the three most independent possible
methodologies/bandpasses ($B$, $V$, $J$), we obtain $H_{0}=69.9 \pm 0.8$ and
$H_{0} =73.5 \pm 0.7$ km s$^{-1}$ Mpc$^{-1}$ from the TRGB and Cepheid
calibrations, respectively. Adding in quadrature the systematic uncertainty in
the TRGB and Cepheid methods of 1.1 and 1.0 km s$^{-1}$ Mpc$^{-1}$,
respectively, this subset reveals a significant 2.0 $\sigma$ systematic
difference in the calibration of Rung 2. If Rung 1 and Rung 2 are held fixed,
the different formalisms developed for standardizing the supernova peak
magnitudes yield consistent results, with a standard deviation of 1.5 km
s$^{-1}$ Mpc$^{-1}$, that is, Type Ia supernovae are able to anchor Rung 3 with
2 % precision. This study demonstrates that Type Ia supernovae have provided a
remarkably robust calibration of R3 for over 25 years.
