Room-temperature molecular magnets based on V/TCNE may be prepared via two routes, identified as V(C6H6)(2)/TCNE/CH2Cl2 and V(CO)(6)/TCNE/CH2Cl2. Both compounds have critical temperatures exceeding 350 K. The magnetization M(T,H) of samples prepared via both routes have been compared. The saturation magnetization of the V(CO)(6)-derived material (M(0) similar to 10(4) emu . Oe . mol(-1)) is larger than that observed for V(C6H6)(2)-derived materials (M(0) similar to 0.6 x 10(4) emu . Oe . mol(-1)), and the behavior of M(T) at H = 100 Oe is more like that exhibited by crystalline magnets. Whereas V(C6H6)(2)/TCNE/CH2Cl2 has a linear M(T) for 5 less than or equal to T less than or equal to 300 K, the magnetization of V(CO)(6)/TCNE/CH2Cl2, follows the Bloch spin-wave form M(T) = M(0)(1 - BT3/2), where the zero-temperature magnetization M(0) is suppressed from M, by the effect of random magnetic anisotropy (RMA). The values of M(0) and the spin-wave dispersion constant B, as well as the range of validity of the T-3/2 law, vary among different preparations of the magnet, reflecting a correlation between magnetic and structural anisotropies. For the V(CO)(6)-derived magnet, near T-c approximate to 370 K, the large value of the critical exponent beta approximate to 0.6 reflects the presence of RMA, consistent with other V/TCNE systems. A scaling analysis is presented.